Class: Google::Cloud::Retail::V2::SearchRequest

Inherits:
Object
  • Object
show all
Extended by:
Protobuf::MessageExts::ClassMethods
Includes:
Protobuf::MessageExts
Defined in:
proto_docs/google/cloud/retail/v2/search_service.rb

Overview

Request message for SearchService.Search method.

Defined Under Namespace

Modules: SearchMode Classes: BoostSpec, ConversationalSearchSpec, DynamicFacetSpec, FacetSpec, LabelsEntry, PersonalizationSpec, QueryExpansionSpec, SpellCorrectionSpec, TileNavigationSpec

Instance Attribute Summary collapse

Instance Attribute Details

#boost_spec ⇒ ::Google::Cloud::Retail::V2::SearchRequest::BoostSpec

Returns Boost specification to boost certain products. For more information, see Boost results.

Notice that if both ServingConfig.boost_control_ids and SearchRequest.boost_spec are set, the boost conditions from both places are evaluated. If a search request matches multiple boost conditions, the final boost score is equal to the sum of the boost scores from all matched boost conditions.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#branch ⇒ ::String

Returns The branch resource name, such as projects/*/locations/global/catalogs/default_catalog/branches/0.

Use "default_branch" as the branch ID or leave this field empty, to search products under the default branch.

Returns:

  • (::String) —

    The branch resource name, such as projects/*/locations/global/catalogs/default_catalog/branches/0.

    Use "default_branch" as the branch ID or leave this field empty, to search products under the default branch.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#canonical_filter ⇒ ::String

Returns The default filter that is applied when a user performs a search without checking any filters on the search page.

The filter applied to every search request when quality improvement such as query expansion is needed. In the case a query does not have a sufficient amount of results this filter will be used to determine whether or not to enable the query expansion flow. The original filter will still be used for the query expanded search. This field is strongly recommended to achieve high search quality.

For more information about filter syntax, see SearchRequest.filter.

Returns:

  • (::String) —

    The default filter that is applied when a user performs a search without checking any filters on the search page.

    The filter applied to every search request when quality improvement such as query expansion is needed. In the case a query does not have a sufficient amount of results this filter will be used to determine whether or not to enable the query expansion flow. The original filter will still be used for the query expanded search. This field is strongly recommended to achieve high search quality.

    For more information about filter syntax, see SearchRequest.filter.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#conversational_search_spec ⇒ ::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec

Returns Optional. This field specifies all conversational related parameters addition to traditional retail search.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#dynamic_facet_spec ⇒ ::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec

Deprecated.

This field is deprecated and may be removed in the next major version update.

Returns Deprecated. Refer to https://cloud.google.com/retail/docs/configs#dynamic to enable dynamic facets. Do not set this field.

The specification for dynamically generated facets. Notice that only textual facets can be dynamically generated.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#entity ⇒ ::String

Returns The entity for customers that may run multiple different entities, domains, sites or regions, for example, Google US, Google Ads, Waymo, google.com, youtube.com, etc. If this is set, it should be exactly matched with UserEvent.entity to get search results boosted by entity.

Returns:

  • (::String) —

    The entity for customers that may run multiple different entities, domains, sites or regions, for example, Google US, Google Ads, Waymo, google.com, youtube.com, etc. If this is set, it should be exactly matched with UserEvent.entity to get search results boosted by entity.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#facet_specs ⇒ ::Array<::Google::Cloud::Retail::V2::SearchRequest::FacetSpec>

Returns Facet specifications for faceted search. If empty, no facets are returned.

A maximum of 200 values are allowed. Otherwise, an INVALID_ARGUMENT error is returned.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#filter ⇒ ::String

Returns The filter syntax consists of an expression language for constructing a predicate from one or more fields of the products being filtered. Filter expression is case-sensitive. For more information, see Filter.

If this field is unrecognizable, an INVALID_ARGUMENT is returned.

Returns:

  • (::String) —

    The filter syntax consists of an expression language for constructing a predicate from one or more fields of the products being filtered. Filter expression is case-sensitive. For more information, see Filter.

    If this field is unrecognizable, an INVALID_ARGUMENT is returned.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#labels ⇒ ::Google::Protobuf::Map{::String => ::String}

Returns The labels applied to a resource must meet the following requirements:

  • Each resource can have multiple labels, up to a maximum of 64.
  • Each label must be a key-value pair.
  • Keys have a minimum length of 1 character and a maximum length of 63 characters and cannot be empty. Values can be empty and have a maximum length of 63 characters.
  • Keys and values can contain only lowercase letters, numeric characters, underscores, and dashes. All characters must use UTF-8 encoding, and international characters are allowed.
  • The key portion of a label must be unique. However, you can use the same key with multiple resources.
  • Keys must start with a lowercase letter or international character.

For more information, see Requirements for labels in the Resource Manager documentation.

Returns:

  • (::Google::Protobuf::Map{::String => ::String}) —

    The labels applied to a resource must meet the following requirements:

    • Each resource can have multiple labels, up to a maximum of 64.
    • Each label must be a key-value pair.
    • Keys have a minimum length of 1 character and a maximum length of 63 characters and cannot be empty. Values can be empty and have a maximum length of 63 characters.
    • Keys and values can contain only lowercase letters, numeric characters, underscores, and dashes. All characters must use UTF-8 encoding, and international characters are allowed.
    • The key portion of a label must be unique. However, you can use the same key with multiple resources.
    • Keys must start with a lowercase letter or international character.

    For more information, see Requirements for labels in the Resource Manager documentation.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#offset ⇒ ::Integer

Returns A 0-indexed integer that specifies the current offset (that is, starting result location, amongst the Products deemed by the API as relevant) in search results. This field is only considered if page_token is unset.

If this field is negative, an INVALID_ARGUMENT is returned.

Returns:

  • (::Integer) —

    A 0-indexed integer that specifies the current offset (that is, starting result location, amongst the Products deemed by the API as relevant) in search results. This field is only considered if page_token is unset.

    If this field is negative, an INVALID_ARGUMENT is returned.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#order_by ⇒ ::String

Returns The order in which products are returned. Products can be ordered by a field in an Product object. Leave it unset if ordered by relevance. OrderBy expression is case-sensitive. For more information, see Order.

If this field is unrecognizable, an INVALID_ARGUMENT is returned.

Returns:

  • (::String) —

    The order in which products are returned. Products can be ordered by a field in an Product object. Leave it unset if ordered by relevance. OrderBy expression is case-sensitive. For more information, see Order.

    If this field is unrecognizable, an INVALID_ARGUMENT is returned.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#page_categories ⇒ ::Array<::String>

Returns The categories associated with a category page. Must be set for category navigation queries to achieve good search quality. The format should be the same as UserEvent.page_categories;

To represent full path of category, use '>' sign to separate different hierarchies. If '>' is part of the category name, replace it with other character(s).

Category pages include special pages such as sales or promotions. For instance, a special sale page may have the category hierarchy: "pageCategories" : ["Sales > 2017 Black Friday Deals"].

Returns:

  • (::Array<::String>) —

    The categories associated with a category page. Must be set for category navigation queries to achieve good search quality. The format should be the same as UserEvent.page_categories;

    To represent full path of category, use '>' sign to separate different hierarchies. If '>' is part of the category name, replace it with other character(s).

    Category pages include special pages such as sales or promotions. For instance, a special sale page may have the category hierarchy: "pageCategories" : ["Sales > 2017 Black Friday Deals"].



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#page_size ⇒ ::Integer

Returns Maximum number of Products to return. If unspecified, defaults to a reasonable value. The maximum allowed value is

  1. Values above 120 will be coerced to 120.

If this field is negative, an INVALID_ARGUMENT is returned.

Returns:

  • (::Integer) —

    Maximum number of Products to return. If unspecified, defaults to a reasonable value. The maximum allowed value is

    1. Values above 120 will be coerced to 120.

    If this field is negative, an INVALID_ARGUMENT is returned.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#page_token ⇒ ::String

Returns A page token SearchResponse.next_page_token, received from a previous SearchService.Search call. Provide this to retrieve the subsequent page.

When paginating, all other parameters provided to SearchService.Search must match the call that provided the page token. Otherwise, an INVALID_ARGUMENT error is returned.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#personalization_spec ⇒ ::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec

Returns The specification for personalization.

Notice that if both ServingConfig.personalization_spec and SearchRequest.personalization_spec are set. SearchRequest.personalization_spec will override ServingConfig.personalization_spec.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#placement ⇒ ::String

Returns Required. The resource name of the Retail Search serving config, such as projects/*/locations/global/catalogs/default_catalog/servingConfigs/default_serving_config or the name of the legacy placement resource, such as projects/*/locations/global/catalogs/default_catalog/placements/default_search. This field is used to identify the serving config name and the set of models that are used to make the search.

Returns:

  • (::String) —

    Required. The resource name of the Retail Search serving config, such as projects/*/locations/global/catalogs/default_catalog/servingConfigs/default_serving_config or the name of the legacy placement resource, such as projects/*/locations/global/catalogs/default_catalog/placements/default_search. This field is used to identify the serving config name and the set of models that are used to make the search.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#query ⇒ ::String

Returns Raw search query.

If this field is empty, the request is considered a category browsing request and returned results are based on filter and page_categories.

Returns:

  • (::String) —

    Raw search query.

    If this field is empty, the request is considered a category browsing request and returned results are based on filter and page_categories.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#query_expansion_spec ⇒ ::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec

Returns The query expansion specification that specifies the conditions under which query expansion occurs. For more information, see Query expansion.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#search_mode ⇒ ::Google::Cloud::Retail::V2::SearchRequest::SearchMode

Returns The search mode of the search request. If not specified, a single search request triggers both product search and faceted search.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#spell_correction_spec ⇒ ::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec

Returns The spell correction specification that specifies the mode under which spell correction will take effect.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#tile_navigation_spec ⇒ ::Google::Cloud::Retail::V2::SearchRequest::TileNavigationSpec

Returns Optional. This field specifies tile navigation related parameters.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#user_info ⇒ ::Google::Cloud::Retail::V2::UserInfo

Returns User information.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#variant_rollup_keys ⇒ ::Array<::String>

Returns The keys to fetch and rollup the matching variant Products attributes, FulfillmentInfo or LocalInventorys attributes. The attributes from all the matching variant Products or LocalInventorys are merged and de-duplicated. Notice that rollup attributes will lead to extra query latency. Maximum number of keys is 30.

For FulfillmentInfo, a fulfillment type and a fulfillment ID must be provided in the format of "fulfillmentType.fulfillmentId". E.g., in "pickupInStore.store123", "pickupInStore" is fulfillment type and "store123" is the store ID.

Supported keys are:

If this field is set to an invalid value other than these, an INVALID_ARGUMENT error is returned.

Returns:



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end

#visitor_id ⇒ ::String

Returns Required. A unique identifier for tracking visitors. For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor logs in or out of the website.

This should be the same identifier as UserEvent.visitor_id.

The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.

Returns:

  • (::String) —

    Required. A unique identifier for tracking visitors. For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor logs in or out of the website.

    This should be the same identifier as UserEvent.visitor_id.

    The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.



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# File 'proto_docs/google/cloud/retail/v2/search_service.rb', line 337

class SearchRequest
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # A facet specification to perform faceted search.
  # @!attribute [rw] facet_key
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey]
  #     Required. The facet key specification.
  # @!attribute [rw] limit
  #   @return [::Integer]
  #     Maximum of facet values that should be returned for this facet. If
  #     unspecified, defaults to 50. The maximum allowed value is 300. Values
  #     above 300 will be coerced to 300.
  #
  #     If this field is negative, an INVALID_ARGUMENT is returned.
  # @!attribute [rw] excluded_filter_keys
  #   @return [::Array<::String>]
  #     List of keys to exclude when faceting.
  #
  #
  #     By default,
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     is not excluded from the filter unless it is listed in this field.
  #
  #     Listing a facet key in this field allows its values to appear as facet
  #     results, even when they are filtered out of search results. Using this
  #     field does not affect what search results are returned.
  #
  #     For example, suppose there are 100 products with the color facet "Red"
  #     and 200 products with the color facet "Blue". A query containing the
  #     filter "colorFamilies:ANY("Red")" and having "colorFamilies" as
  #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
  #     would by default return only "Red" products in the search results, and
  #     also return "Red" with count 100 as the only color facet. Although there
  #     are also blue products available, "Blue" would not be shown as an
  #     available facet value.
  #
  #     If "colorFamilies" is listed in "excludedFilterKeys", then the query
  #     returns the facet values "Red" with count 100 and "Blue" with count
  #     200, because the "colorFamilies" key is now excluded from the filter.
  #     Because this field doesn't affect search results, the search results
  #     are still correctly filtered to return only "Red" products.
  #
  #     A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error
  #     is returned.
  # @!attribute [rw] enable_dynamic_position
  #   @return [::Boolean]
  #     Enables dynamic position for this facet. If set to true, the position of
  #     this facet among all facets in the response is determined by Google
  #     Retail Search. It is ordered together with dynamic facets if dynamic
  #     facets is enabled. If set to false, the position of this facet in the
  #     response is the same as in the request, and it is ranked before
  #     the facets with dynamic position enable and all dynamic facets.
  #
  #     For example, you may always want to have rating facet returned in
  #     the response, but it's not necessarily to always display the rating facet
  #     at the top. In that case, you can set enable_dynamic_position to true so
  #     that the position of rating facet in response is determined by
  #     Google Retail Search.
  #
  #     Another example, assuming you have the following facets in the request:
  #
  #     * "rating", enable_dynamic_position = true
  #
  #     * "price", enable_dynamic_position = false
  #
  #     * "brands", enable_dynamic_position = false
  #
  #     And also you have a dynamic facets enable, which generates a facet
  #     "gender". Then, the final order of the facets in the response can be
  #     ("price", "brands", "rating", "gender") or ("price", "brands", "gender",
  #     "rating") depends on how Google Retail Search orders "gender" and
  #     "rating" facets. However, notice that "price" and "brands" are always
  #     ranked at first and second position because their enable_dynamic_position
  #     values are false.
  class FacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Specifies how a facet is computed.
    # @!attribute [rw] key
    #   @return [::String]
    #     Required. Supported textual and numerical facet keys in
    #     {::Google::Cloud::Retail::V2::Product Product} object, over which the facet
    #     values are computed. Facet key is case-sensitive.
    #
    #     Allowed facet keys when
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is not specified:
    #
    #     * textual_field =
    #         * "brands"
    #         * "categories"
    #         * "genders"
    #         * "ageGroups"
    #         * "availability"
    #         * "colorFamilies"
    #         * "colors"
    #         * "sizes"
    #         * "materials"
    #         * "patterns"
    #         * "conditions"
    #         * "attributes.key"
    #         * "pickupInStore"
    #         * "shipToStore"
    #         * "sameDayDelivery"
    #         * "nextDayDelivery"
    #         * "customFulfillment1"
    #         * "customFulfillment2"
    #         * "customFulfillment3"
    #         * "customFulfillment4"
    #         * "customFulfillment5"
    #         * "inventory(place_id,attributes.key)"
    #
    #     * numerical_field =
    #         * "price"
    #         * "discount"
    #         * "rating"
    #         * "ratingCount"
    #         * "attributes.key"
    #         * "inventory(place_id,price)"
    #         * "inventory(place_id,original_price)"
    #         * "inventory(place_id,attributes.key)"
    # @!attribute [rw] intervals
    #   @return [::Array<::Google::Cloud::Retail::V2::Interval>]
    #     Set only if values should be bucketized into intervals. Must be set
    #     for facets with numerical values. Must not be set for facet with text
    #     values. Maximum number of intervals is 40.
    #
    #     For all numerical facet keys that appear in the list of products from
    #     the catalog, the percentiles 0, 10, 30, 50, 70, 90, and 100 are
    #     computed from their distribution weekly. If the model assigns a high
    #     score to a numerical facet key and its intervals are not specified in
    #     the search request, these percentiles become the bounds
    #     for its intervals and are returned in the response. If the
    #     facet key intervals are specified in the request, then the specified
    #     intervals are returned instead.
    # @!attribute [rw] restricted_values
    #   @return [::Array<::String>]
    #     Only get facet for the given restricted values. For example, when using
    #     "pickupInStore" as key and set restricted values to
    #     ["store123", "store456"], only facets for "store123" and "store456" are
    #     returned. Only supported on predefined textual fields, custom textual
    #     attributes and fulfillments. Maximum is 20.
    #
    #     Must be set for the fulfillment facet keys:
    #
    #     * pickupInStore
    #
    #     * shipToStore
    #
    #     * sameDayDelivery
    #
    #     * nextDayDelivery
    #
    #     * customFulfillment1
    #
    #     * customFulfillment2
    #
    #     * customFulfillment3
    #
    #     * customFulfillment4
    #
    #     * customFulfillment5
    # @!attribute [rw] prefixes
    #   @return [::Array<::String>]
    #     Only get facet values that start with the given string prefix. For
    #     example, suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "prefixes" to "Women", the
    #     "categories" facet gives only "Women > Shoe" and "Women > Dress".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] contains
    #   @return [::Array<::String>]
    #     Only get facet values that contains the given strings. For example,
    #     suppose "categories" has three values "Women > Shoe",
    #     "Women > Dress" and "Men > Shoe". If set "contains" to "Shoe", the
    #     "categories" facet gives only "Women > Shoe" and "Men > Shoe".
    #     Only supported on textual fields. Maximum is 10.
    # @!attribute [rw] case_insensitive
    #   @return [::Boolean]
    #     True to make facet keys case insensitive when getting faceting
    #     values with prefixes or contains; false otherwise.
    # @!attribute [rw] order_by
    #   @return [::String]
    #     The order in which
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet#values SearchResponse.Facet.values}
    #     are returned.
    #
    #     Allowed values are:
    #
    #     * "count desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     descending.
    #
    #     * "value desc", which means order by
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     descending.
    #       Only applies to textual facets.
    #
    #     If not set, textual values are sorted in [natural
    #     order](https://en.wikipedia.org/wiki/Natural_sort_order); numerical
    #     intervals are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#intervals FacetSpec.FacetKey.intervals};
    #     {::Google::Cloud::Retail::V2::FulfillmentInfo#place_ids FulfillmentInfo.place_ids}
    #     are sorted in the order given by
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#restricted_values FacetSpec.FacetKey.restricted_values}.
    # @!attribute [rw] query
    #   @return [::String]
    #     The query that is used to compute facet for the given facet key.
    #     When provided, it overrides the default behavior of facet
    #     computation. The query syntax is the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations. Notice that there is no limitation on
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     when query is specified.
    #
    #     In the response,
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#value SearchResponse.Facet.values.value}
    #     is always "1" and
    #     {::Google::Cloud::Retail::V2::SearchResponse::Facet::FacetValue#count SearchResponse.Facet.values.count}
    #     is the number of results that match the query.
    #
    #     For example, you can set a customized facet for "shipToStore",
    #     where
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#key FacetKey.key}
    #     is "customizedShipToStore", and
    #     {::Google::Cloud::Retail::V2::SearchRequest::FacetSpec::FacetKey#query FacetKey.query}
    #     is "availability: ANY(\"IN_STOCK\") AND shipToStore: ANY(\"123\")".
    #     Then the facet counts the products that are both in stock and ship
    #     to store "123".
    # @!attribute [rw] return_min_max
    #   @return [::Boolean]
    #     Returns the min and max value for each numerical facet intervals.
    #     Ignored for textual facets.
    class FacetKey
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # The specifications of dynamically generated facets.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode]
  #     Mode of the DynamicFacet feature.
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::DynamicFacetSpec::Mode::DISABLED Mode.DISABLED}
  #     if it's unset.
  class DynamicFacetSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum to control DynamicFacet mode
    module Mode
      # Default value.
      MODE_UNSPECIFIED = 0

      # Disable Dynamic Facet.
      DISABLED = 1

      # Automatic mode built by Google Retail Search.
      ENABLED = 2
    end
  end

  # Boost specification to boost certain items.
  # @!attribute [rw] condition_boost_specs
  #   @return [::Array<::Google::Cloud::Retail::V2::SearchRequest::BoostSpec::ConditionBoostSpec>]
  #     Condition boost specifications. If a product matches multiple conditions
  #     in the specifictions, boost scores from these specifications are all
  #     applied and combined in a non-linear way. Maximum number of
  #     specifications is 20.
  # @!attribute [rw] skip_boost_spec_validation
  #   @return [::Boolean]
  #     Whether to skip boostspec validation. If this field is set to true,
  #     invalid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will be ignored and valid
  #     {::Google::Cloud::Retail::V2::SearchRequest::BoostSpec#condition_boost_specs BoostSpec.condition_boost_specs}
  #     will still be applied.
  class BoostSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Boost applies to products which match a condition.
    # @!attribute [rw] condition
    #   @return [::String]
    #     An expression which specifies a boost condition. The syntax and
    #     supported fields are the same as a filter expression. See
    #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter} for
    #     detail syntax and limitations.
    #
    #     Examples:
    #
    #     * To boost products with product ID "product_1" or "product_2", and
    #     color
    #       "Red" or "Blue":
    #         * (id: ANY("product_1", "product_2")) AND (colorFamilies:
    #         ANY("Red","Blue"))
    # @!attribute [rw] boost
    #   @return [::Float]
    #     Strength of the condition boost, which should be in [-1, 1]. Negative
    #     boost means demotion. Default is 0.0.
    #
    #     Setting to 1.0 gives the item a big promotion. However, it does not
    #     necessarily mean that the boosted item will be the top result at all
    #     times, nor that other items will be excluded. Results could still be
    #     shown even when none of them matches the condition. And results that
    #     are significantly more relevant to the search query can still trump
    #     your heavily favored but irrelevant items.
    #
    #     Setting to -1.0 gives the item a big demotion. However, results that
    #     are deeply relevant might still be shown. The item will have an
    #     upstream battle to get a fairly high ranking, but it is not blocked out
    #     completely.
    #
    #     Setting to 0.0 means no boost applied. The boosting condition is
    #     ignored.
    class ConditionBoostSpec
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods
    end
  end

  # Specification to determine under which conditions query expansion should
  # occur.
  # @!attribute [rw] condition
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition]
  #     The condition under which query expansion should occur. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
  # @!attribute [rw] pin_unexpanded_results
  #   @return [::Boolean]
  #     Whether to pin unexpanded results. If this field is set to true,
  #     unexpanded products are always at the top of the search results, followed
  #     by the expanded results.
  class QueryExpansionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which condition query expansion should occur.
    module Condition
      # Unspecified query expansion condition. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::QueryExpansionSpec::Condition::DISABLED Condition.DISABLED}.
      CONDITION_UNSPECIFIED = 0

      # Disabled query expansion. Only the exact search query is used, even if
      # {::Google::Cloud::Retail::V2::SearchResponse#total_size SearchResponse.total_size}
      # is zero.
      DISABLED = 1

      # Automatic query expansion built by Google Retail Search.
      AUTO = 3
    end
  end

  # The specification for personalization.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode]
  #     Defaults to
  #     {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
  class PersonalizationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The personalization mode of each search request.
    module Mode
      # Default value. In this case, server behavior defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::PersonalizationSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Let CRS decide whether to use personalization based on quality of user
      # event data.
      AUTO = 1

      # Disable personalization.
      DISABLED = 2
    end
  end

  # The specification for query spell correction.
  # @!attribute [rw] mode
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode]
  #     The mode under which spell correction should take effect to
  #     replace the original search query. Default to
  #     {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
  class SpellCorrectionSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # Enum describing under which mode spell correction should occur.
    module Mode
      # Unspecified spell correction mode. In this case, server behavior
      # defaults to
      # {::Google::Cloud::Retail::V2::SearchRequest::SpellCorrectionSpec::Mode::AUTO Mode.AUTO}.
      MODE_UNSPECIFIED = 0

      # Google Retail Search will try to find a spell suggestion if there
      # is any and put in the
      # {::Google::Cloud::Retail::V2::SearchResponse#corrected_query SearchResponse.corrected_query}.
      # The spell suggestion will not be used as the search query.
      SUGGESTION_ONLY = 1

      # Automatic spell correction built by Google Retail Search. Search will
      # be based on the corrected query if found.
      AUTO = 2
    end
  end

  # This field specifies all conversational related parameters addition to
  # traditional retail search.
  # @!attribute [rw] followup_conversation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to do conversational
  #     search. If this field is set to true, conversational related extra
  #     information will be returned from server side, including follow-up
  #     question, answer options, etc.
  # @!attribute [rw] conversation_id
  #   @return [::String]
  #     This field specifies the conversation id, which maintains the state of
  #     the conversation between client side and server side. Use the value from
  #     the previous [ConversationalSearchResult.conversation_id][]. For the
  #     initial request, this should be empty.
  # @!attribute [rw] user_answer
  #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer]
  #     This field specifies the current user answer during the conversational
  #     search. This can be either user selected from suggested answers or user
  #     input plain text.
  class ConversationalSearchSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # This field specifies the current user answer during the conversational
    # search. This can be either user selected from suggested answers or user
    # input plain text.
    # @!attribute [rw] text_answer
    #   @return [::String]
    #     This field specifies the incremental input text from the user during
    #     the conversational search.
    # @!attribute [rw] selected_answer
    #   @return [::Google::Cloud::Retail::V2::SearchRequest::ConversationalSearchSpec::UserAnswer::SelectedAnswer]
    #     This field specifies the selected attributes during the
    #     conversational search. This should be a subset of
    #     [ConversationalSearchResult.suggested_answers][].
    class UserAnswer
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # This field specifies the selected answers during the conversational
      # search.
      # @!attribute [rw] product_attribute_values
      #   @deprecated This field is deprecated and may be removed in the next major version update.
      #   @return [::Array<::Google::Cloud::Retail::V2::ProductAttributeValue>]
      #     This field is deprecated and should not be set.
      # @!attribute [rw] product_attribute_value
      #   @return [::Google::Cloud::Retail::V2::ProductAttributeValue]
      #     This field specifies the selected answer which is a attribute
      #     key-value.
      class SelectedAnswer
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end
  end

  # This field specifies tile navigation related parameters.
  # @!attribute [rw] tile_navigation_requested
  #   @return [::Boolean]
  #     This field specifies whether the customer would like to request tile
  #     navigation.
  # @!attribute [rw] applied_tiles
  #   @return [::Array<::Google::Cloud::Retail::V2::Tile>]
  #     This field specifies the tiles which are already clicked in client side.
  #     NOTE: This field is not being used for filtering search products. Client
  #     side should also put all the applied tiles in
  #     {::Google::Cloud::Retail::V2::SearchRequest#filter SearchRequest.filter}.
  class TileNavigationSpec
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # @!attribute [rw] key
  #   @return [::String]
  # @!attribute [rw] value
  #   @return [::String]
  class LabelsEntry
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods
  end

  # The search mode of each search request.
  module SearchMode
    # Default value. In this case both product search and faceted search will
    # be performed. Both
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # and {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet}
    # will be returned.
    SEARCH_MODE_UNSPECIFIED = 0

    # Only product search will be performed. The faceted search will be
    # disabled.
    #
    # Only
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # not be returned, even if
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # or
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # is set.
    PRODUCT_SEARCH_ONLY = 1

    # Only faceted search will be performed. The product search will be
    # disabled.
    #
    # When in this mode, one or both of
    # {::Google::Cloud::Retail::V2::SearchRequest#facet_specs SearchRequest.facet_specs}
    # and
    # {::Google::Cloud::Retail::V2::SearchRequest#dynamic_facet_spec SearchRequest.dynamic_facet_spec}
    # should be set. Otherwise, an INVALID_ARGUMENT error is returned. Only
    # {::Google::Cloud::Retail::V2::SearchResponse::Facet SearchResponse.Facet} will
    # be returned.
    # {::Google::Cloud::Retail::V2::SearchResponse::SearchResult SearchResponse.SearchResult}
    # will not be returned.
    FACETED_SEARCH_ONLY = 2
  end
end