SessionsClient

SessionsClient

A session represents an interaction with a user. You retrieve user input and pass it to the DetectIntent (or StreamingDetectIntent) method to determine user intent and respond.

Constructor

new SessionsClient(optionsopt)

Construct an instance of SessionsClient.

Parameters:
Name Type Attributes Description
options object <optional>

The configuration object. See the subsequent parameters for more details.

Properties
Name Type Attributes Description
credentials object <optional>

Credentials object.

Properties
Name Type Attributes Description
client_email string <optional>
private_key string <optional>
email string <optional>

Account email address. Required when using a .pem or .p12 keyFilename.
keyFilename string <optional>

Full path to the a .json, .pem, or .p12 key downloaded from the Google Developers Console. If you provide a path to a JSON file, the projectId option below is not necessary. NOTE: .pem and .p12 require you to specify options.email as well.
port number <optional>

The port on which to connect to the remote host.
projectId string <optional>

The project ID from the Google Developer's Console, e.g. 'grape-spaceship-123'. We will also check the environment variable GCLOUD_PROJECT for your project ID. If your app is running in an environment which supports Application Default Credentials, your project ID will be detected automatically.
promise function <optional>

Custom promise module to use instead of native Promises.
apiEndpoint string <optional>

The domain name of the API remote host.
Source:

Members

(static) apiEndpoint

The DNS address for this API service - same as servicePath(), exists for compatibility reasons.

Source:

(static) port

The port for this API service.

Source:

(static) scopes

The scopes needed to make gRPC calls for every method defined in this service.

Source:

(static) servicePath

The DNS address for this API service.

Source:

Methods

detectIntent(request, optionsopt, callbackopt) → {Promise}

Processes a natural language query and returns structured, actionable data as a result. This method is not idempotent, because it may cause contexts and session entity types to be updated, which in turn might affect results of future queries.

Parameters:
Name Type Attributes Description
request Object

The request object that will be sent.

Properties
Name Type Attributes Description
session string

Required. The name of the session this query is sent to. Format: projects/<Project ID>/agent/sessions/<Session ID>. It's up to the API caller to choose an appropriate session ID. It can be a random number or some type of user identifier (preferably hashed). The length of the session ID must not exceed 36 bytes.
queryInput Object

Required. The input specification. It can be set to:

  1. an audio config which instructs the speech recognizer how to process the speech audio,

  2. a conversational query in the form of text, or

  3. an event that specifies which intent to trigger.

This object should have the same structure as QueryInput
queryParams Object <optional>

Optional. The parameters of this query.

This object should have the same structure as QueryParameters
outputAudioConfig Object <optional>

Optional. Instructs the speech synthesizer how to generate the output audio. If this field is not set and agent-level speech synthesizer is not configured, no output audio is generated.

This object should have the same structure as OutputAudioConfig
inputAudio Buffer <optional>

Optional. The natural language speech audio to be processed. This field should be populated iff query_input is set to an input audio config. A single request can contain up to 1 minute of speech audio data.
options Object <optional>

Optional parameters. You can override the default settings for this call, e.g, timeout, retries, paginations, etc. See gax.CallOptions for the details.
callback function <optional>

The function which will be called with the result of the API call.

The second parameter to the callback is an object representing DetectIntentResponse.
Source:
Example
const dialogflow = require('dialogflow');

const client = new dialogflow.v2.SessionsClient({
  // optional auth parameters.
});

const formattedSession = client.sessionPath('[PROJECT]', '[SESSION]');
const queryInput = {};
const request = {
  session: formattedSession,
  queryInput: queryInput,
};
client.detectIntent(request)
  .then(responses => {
    const response = responses[0];
    // doThingsWith(response)
  })
  .catch(err => {
    console.error(err);
  });

getProjectId(callback)

Return the project ID used by this class.

Parameters:
Name Type Description
callback function

the callback to be called with the current project Id.
Source:

matchProjectFromSessionName(sessionName) → {String}

Parse the sessionName from a session resource.

Parameters:
Name Type Description
sessionName String

A fully-qualified path representing a session resources.
Source:

matchSessionFromSessionName(sessionName) → {String}

Parse the sessionName from a session resource.

Parameters:
Name Type Description
sessionName String

A fully-qualified path representing a session resources.
Source:

sessionPath(project, session) → {String}

Return a fully-qualified session resource name string.

Parameters:
Name Type Description
project String
session String
Source:

streamingDetectIntent(optionsopt) → {Stream}

Processes a natural language query in audio format in a streaming fashion and returns structured, actionable data as a result. This method is only available via the gRPC API (not REST).

Parameters:
Name Type Attributes Description
options Object <optional>

Optional parameters. You can override the default settings for this call, e.g, timeout, retries, paginations, etc. See gax.CallOptions for the details.
Source:
Example
const dialogflow = require('dialogflow');

const client = new dialogflow.v2.SessionsClient({
  // optional auth parameters.
});

const stream = client.streamingDetectIntent().on('data', response => {
  // doThingsWith(response)
});
const session = '';
const queryInput = {};
const request = {
  session: session,
  queryInput: queryInput,
};
// Write request objects.
stream.write(request);