CloudRedisClient - Documentation

Constructor

new CloudRedisClient(optionsopt, gaxInstanceopt)

Construct an instance of CloudRedisClient.

Parameters:

Name Type Attributes Description

options

object

The configuration object. The options accepted by the constructor are described in detail in this document. The common options are:

Properties

Name Type Attributes Description

credentials

object

Credentials object.

Properties

Name	Type	Attributes	Description
`client_email`	string	<optional>
`private_key`	string	<optional>

email

string

Account email address. Required when using a .pem or .p12 keyFilename.

keyFilename

string

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

The port on which to connect to the remote host.

projectId

string

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.

apiEndpoint

string

The domain name of the API remote host.

clientConfig

gax.ClientConfig

Client configuration override. Follows the structure of gapicConfig.

fallback

boolean | "rest"

Use HTTP fallback mode. Pass "rest" to use HTTP/1.1 REST API instead of gRPC. For more information, please check the documentation.

gaxInstance

gax

loaded instance of google-gax. Useful if you need to avoid loading the default gRPC version and want to use the fallback HTTP implementation. Load only fallback version and pass it to the constructor: const gax = require('google-gax/build/src/fallback'); // avoids loading google-gax with gRPC const client = new CloudRedisClient({fallback: 'rest'}, gax);

Members

apiEndpoint

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

port

The port for this API service.

scopes

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

servicePath

The DNS address for this API service.

Methods

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

Starts asynchronous cancellation on a long-running operation. The server makes a best effort to cancel the operation, but success is not guaranteed. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED. Clients can use Operations.GetOperation or other methods to check whether the cancellation succeeded or whether the operation completed despite cancellation. On successful cancellation, the operation is not deleted; instead, it becomes an operation with an Operation.error value with a google.rpc.Status.code of 1, corresponding to Code.CANCELLED.

Parameters:

Name Type Attributes Description

request

Object

The request object that will be sent.

Properties

Name	Type	Description
`name`	string	The name of the operation resource to be cancelled.

options

Object

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

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

Returns:

Type	Description
Promise	The promise which resolves when API call finishes. The promise has a method named "cancel" which cancels the ongoing API call.

Example

```
const client = longrunning.operationsClient();
await client.cancelOperation({name: ''});
```

(async) checkCreateInstanceProgress(name) → {Promise}

Check the status of the long running operation returned by createInstance().

Parameters:

Name	Type	Description
`name`	String	The operation name that will be passed.

Returns:

Type	Description
Promise	The promise which resolves to an object. The decoded operation object has result and metadata field to get information from. Please see the documentation for more details and examples.

Example

  /**
   * This snippet has been automatically generated and should be regarded as a code template only.
   * It will require modifications to work.
   * It may require correct/in-range values for request initialization.
   * TODO(developer): Uncomment these variables before running the sample.
   */
  /**
   *  Required. The resource name of the instance location using the form:
   *      `projects/{project_id}/locations/{location_id}`
   *  where `location_id` refers to a GCP region.
   */
  // const parent = 'abc123'
  /**
   *  Required. The logical name of the Redis instance in the customer project
   *  with the following restrictions:
   *  * Must contain only lowercase letters, numbers, and hyphens.
   *  * Must start with a letter.
   *  * Must be between 1-40 characters.
   *  * Must end with a number or a letter.
   *  * Must be unique within the customer project / location
   */
  // const instanceId = 'abc123'
  /**
   *  Required. A Redis Instance  resource
   */
  // const instance = {}

  // Imports the Redis library
  const {CloudRedisClient} = require('@google-cloud/redis').v1;

  // Instantiates a client
  const redisClient = new CloudRedisClient();

  async function callCreateInstance() {
    // Construct request
    const request = {
      parent,
      instanceId,
      instance,
    };

    // Run request
    const [operation] = await redisClient.createInstance(request);
    const [response] = await operation.promise();
    console.log(response);
  }

  callCreateInstance();

(async) checkDeleteInstanceProgress(name) → {Promise}

Check the status of the long running operation returned by deleteInstance().

Parameters:

Name	Type	Description
`name`	String	The operation name that will be passed.

Returns:

Type	Description
Promise	The promise which resolves to an object. The decoded operation object has result and metadata field to get information from. Please see the documentation for more details and examples.

Example

  /**
   * This snippet has been automatically generated and should be regarded as a code template only.
   * It will require modifications to work.
   * It may require correct/in-range values for request initialization.
   * TODO(developer): Uncomment these variables before running the sample.
   */
  /**
   *  Required. Redis instance resource name using the form:
   *      `projects/{project_id}/locations/{location_id}/instances/{instance_id}`
   *  where `location_id` refers to a GCP region.
   */
  // const name = 'abc123'

  // Imports the Redis library
  const {CloudRedisClient} = require('@google-cloud/redis').v1;

  // Instantiates a client
  const redisClient = new CloudRedisClient();

  async function callDeleteInstance() {
    // Construct request
    const request = {
      name,
    };

    // Run request
    const [operation] = await redisClient.deleteInstance(request);
    const [response] = await operation.promise();
    console.log(response);
  }

  callDeleteInstance();

(async) checkExportInstanceProgress(name) → {Promise}

Check the status of the long running operation returned by exportInstance().

Parameters:

Name	Type	Description
`name`	String	The operation name that will be passed.

Returns:

Type	Description
Promise	The promise which resolves to an object. The decoded operation object has result and metadata field to get information from. Please see the documentation for more details and examples.

Example

  /**
   * This snippet has been automatically generated and should be regarded as a code template only.
   * It will require modifications to work.
   * It may require correct/in-range values for request initialization.
   * TODO(developer): Uncomment these variables before running the sample.
   */
  /**
   *  Required. Redis instance resource name using the form:
   *      `projects/{project_id}/locations/{location_id}/instances/{instance_id}`
   *  where `location_id` refers to a GCP region.
   */
  // const name = 'abc123'
  /**
   *  Required. Specify data to be exported.
   */
  // const outputConfig = {}

  // Imports the Redis library
  const {CloudRedisClient} = require('@google-cloud/redis').v1;

  // Instantiates a client
  const redisClient = new CloudRedisClient();

  async function callExportInstance() {
    // Construct request
    const request = {
      name,
      outputConfig,
    };

    // Run request
    const [operation] = await redisClient.exportInstance(request);
    const [response] = await operation.promise();
    console.log(response);
  }

  callExportInstance();

(async) checkFailoverInstanceProgress(name) → {Promise}

Check the status of the long running operation returned by failoverInstance().

Parameters:

Name	Type	Description
`name`	String	The operation name that will be passed.

Returns:

Type	Description
Promise	The promise which resolves to an object. The decoded operation object has result and metadata field to get information from. Please see the documentation for more details and examples.

Example

  /**
   * This snippet has been automatically generated and should be regarded as a code template only.
   * It will require modifications to work.
   * It may require correct/in-range values for request initialization.
   * TODO(developer): Uncomment these variables before running the sample.
   */
  /**
   *  Required. Redis instance resource name using the form:
   *      `projects/{project_id}/locations/{location_id}/instances/{instance_id}`
   *  where `location_id` refers to a GCP region.
   */
  // const name = 'abc123'
  /**
   *  Optional. Available data protection modes that the user can choose. If it's
   *  unspecified, data protection mode will be LIMITED_DATA_LOSS by default.
   */
  // const dataProtectionMode = {}

  // Imports the Redis library
  const {CloudRedisClient} = require('@google-cloud/redis').v1;

  // Instantiates a client
  const redisClient = new CloudRedisClient();

  async function callFailoverInstance() {
    // Construct request
    const request = {
      name,
    };

    // Run request
    const [operation] = await redisClient.failoverInstance(request);
    const [response] = await operation.promise();
    console.log(response);
  }

  callFailoverInstance();

(async) checkImportInstanceProgress(name) → {Promise}

Check the status of the long running operation returned by importInstance().

Parameters:

Name	Type	Description
`name`	String	The operation name that will be passed.

Returns:

Type	Description
Promise	The promise which resolves to an object. The decoded operation object has result and metadata field to get information from. Please see the documentation for more details and examples.

Example

  /**
   * This snippet has been automatically generated and should be regarded as a code template only.
   * It will require modifications to work.
   * It may require correct/in-range values for request initialization.
   * TODO(developer): Uncomment these variables before running the sample.
   */
  /**
   *  Required. Redis instance resource name using the form:
   *      `projects/{project_id}/locations/{location_id}/instances/{instance_id}`
   *  where `location_id` refers to a GCP region.
   */
  // const name = 'abc123'
  /**
   *  Required. Specify data to be imported.
   */
  // const inputConfig = {}

  // Imports the Redis library
  const {CloudRedisClient} = require('@google-cloud/redis').v1;

  // Instantiates a client
  const redisClient = new CloudRedisClient();

  async function callImportInstance() {
    // Construct request
    const request = {
      name,
      inputConfig,
    };

    // Run request
    const [operation] = await redisClient.importInstance(request);
    const [response] = await operation.promise();
    console.log(response);
  }

  callImportInstance();

(async) checkRescheduleMaintenanceProgress(name) → {Promise}

Check the status of the long running operation returned by rescheduleMaintenance().

Parameters:

Name	Type	Description
`name`	String	The operation name that will be passed.

Returns:

Type	Description
Promise	The promise which resolves to an object. The decoded operation object has result and metadata field to get information from. Please see the documentation for more details and examples.

Example

  /**
   * This snippet has been automatically generated and should be regarded as a code template only.
   * It will require modifications to work.
   * It may require correct/in-range values for request initialization.
   * TODO(developer): Uncomment these variables before running the sample.
   */
  /**
   *  Required. Redis instance resource name using the form:
   *      `projects/{project_id}/locations/{location_id}/instances/{instance_id}`
   *  where `location_id` refers to a GCP region.
   */
  // const name = 'abc123'
  /**
   *  Required. If reschedule type is SPECIFIC_TIME, must set up schedule_time as
   *  well.
   */
  // const rescheduleType = {}
  /**
   *  Optional. Timestamp when the maintenance shall be rescheduled to if
   *  reschedule_type=SPECIFIC_TIME, in RFC 3339 format, for
   *  example `2012-11-15T16:19:00.094Z`.
   */
  // const scheduleTime = {}

  // Imports the Redis library
  const {CloudRedisClient} = require('@google-cloud/redis').v1;

  // Instantiates a client
  const redisClient = new CloudRedisClient();

  async function callRescheduleMaintenance() {
    // Construct request
    const request = {
      name,
      rescheduleType,
    };

    // Run request
    const [operation] = await redisClient.rescheduleMaintenance(request);
    const [response] = await operation.promise();
    console.log(response);
  }

  callRescheduleMaintenance();

(async) checkUpdateInstanceProgress(name) → {Promise}

Check the status of the long running operation returned by updateInstance().

Parameters:

Name	Type	Description
`name`	String	The operation name that will be passed.

Returns:

Type	Description
Promise	The promise which resolves to an object. The decoded operation object has result and metadata field to get information from. Please see the documentation for more details and examples.

Example

  /**
   * This snippet has been automatically generated and should be regarded as a code template only.
   * It will require modifications to work.
   * It may require correct/in-range values for request initialization.
   * TODO(developer): Uncomment these variables before running the sample.
   */
  /**
   *  Required. Mask of fields to update. At least one path must be supplied in
   *  this field. The elements of the repeated paths field may only include these
   *  fields from Instance google.cloud.redis.v1.Instance:
   *   *   `displayName`
   *   *   `labels`
   *   *   `memorySizeGb`
   *   *   `redisConfig`
   *   *   `replica_count`
   */
  // const updateMask = {}
  /**
   *  Required. Update description.
   *  Only fields specified in update_mask are updated.
   */
  // const instance = {}

  // Imports the Redis library
  const {CloudRedisClient} = require('@google-cloud/redis').v1;

  // Instantiates a client
  const redisClient = new CloudRedisClient();

  async function callUpdateInstance() {
    // Construct request
    const request = {
      updateMask,
      instance,
    };

    // Run request
    const [operation] = await redisClient.updateInstance(request);
    const [response] = await operation.promise();
    console.log(response);
  }

  callUpdateInstance();

(async) checkUpgradeInstanceProgress(name) → {Promise}

Check the status of the long running operation returned by upgradeInstance().

Parameters:

Name	Type	Description
`name`	String	The operation name that will be passed.

Returns:

Type	Description
Promise	The promise which resolves to an object. The decoded operation object has result and metadata field to get information from. Please see the documentation for more details and examples.

Example

  /**
   * This snippet has been automatically generated and should be regarded as a code template only.
   * It will require modifications to work.
   * It may require correct/in-range values for request initialization.
   * TODO(developer): Uncomment these variables before running the sample.
   */
  /**
   *  Required. Redis instance resource name using the form:
   *      `projects/{project_id}/locations/{location_id}/instances/{instance_id}`
   *  where `location_id` refers to a GCP region.
   */
  // const name = 'abc123'
  /**
   *  Required. Specifies the target version of Redis software to upgrade to.
   */
  // const redisVersion = 'abc123'

  // Imports the Redis library
  const {CloudRedisClient} = require('@google-cloud/redis').v1;

  // Instantiates a client
  const redisClient = new CloudRedisClient();

  async function callUpgradeInstance() {
    // Construct request
    const request = {
      name,
      redisVersion,
    };

    // Run request
    const [operation] = await redisClient.upgradeInstance(request);
    const [response] = await operation.promise();
    console.log(response);
  }

  callUpgradeInstance();

close() → {Promise}

Terminate the gRPC channel and close the client.

The client will no longer be usable and all future behavior is undefined.

Returns:

Type	Description
Promise	A promise that resolves when the client is closed.

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

Deletes a long-running operation. This method indicates that the client is no longer interested in the operation result. It does not cancel the operation. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED.

Parameters:

Name Type Attributes Description

request

Object

The request object that will be sent.

Properties

Name	Type	Description
`name`	string	The name of the operation resource to be deleted.

options

Object

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

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

Returns:

Type	Description
Promise	The promise which resolves when API call finishes. The promise has a method named "cancel" which cancels the ongoing API call.

Example

```
const client = longrunning.operationsClient();
await client.deleteOperation({name: ''});
```

getLocation(request, optionsopt) → {Promise}

Gets information about a location.

Parameters:

Name Type Attributes Description

request

Object

The request object that will be sent.

Properties

Name	Type	Description
`name`	string	Resource name for the location.

options

object

Call options. See CallOptions for more details.

Returns:

Type	Description
Promise	The promise which resolves to an array. The first element of the array is an object representing Location. Please see the documentation for more details and examples.

Example

```
const [response] = await client.getLocation(request);
```

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

Gets the latest state of a long-running operation. Clients can use this method to poll the operation result at intervals as recommended by the API service.

Parameters:

Name Type Attributes Description

request

Object

The request object that will be sent.

Properties

Name	Type	Description
`name`	string	The name of the operation resource.

options

Object

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

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

The second parameter to the callback is an object representing google.longrunning.Operation.

Returns:

Type	Description
Promise	The promise which resolves to an array. The first element of the array is an object representing google.longrunning.Operation. The promise has a method named "cancel" which cancels the ongoing API call.

Example

```
const client = longrunning.operationsClient();
const name = '';
const [response] = await client.getOperation({name});
// doThingsWith(response)
```

getProjectId() → {Promise}

Return the project ID used by this class.

Returns:

Type	Description
Promise	A promise that resolves to string containing the project ID.

initialize() → {Promise}

Initialize the client. Performs asynchronous operations (such as authentication) and prepares the client. This function will be called automatically when any class method is called for the first time, but if you need to initialize it before calling an actual method, feel free to call initialize() directly.

You can await on this method if you want to make sure the client is initialized.

Returns:

Type	Description
Promise	A promise that resolves to an authenticated service stub.

instancePath(project, location, instance) → {string}

Return a fully-qualified instance resource name string.

Parameters:

Name	Type	Description
`project`	string
`location`	string
`instance`	string

Returns:

Type	Description
string	Resource name string.

listInstancesAsync(request, optionsopt) → {Object}

Equivalent to listInstances, but returns an iterable object.

for-await-of syntax is used with the iterable to get response elements on-demand.

Parameters:

Name Type Attributes Description

request

Object

The request object that will be sent.

Properties

Name Type Description

parent

string

Required. The resource name of the instance location using the form: projects/{project_id}/locations/{location_id} where location_id refers to a GCP region.

pageSize

number

The maximum number of items to return.

If not specified, a default value of 1000 will be used by the service. Regardless of the page_size value, the response may include a partial list and a caller should only rely on response's next_page_token to determine if there are more instances left to be queried.

pageToken

string

The next_page_token value returned from a previous ListInstances request, if any.

options

object

Call options. See CallOptions for more details.

Returns:

Type	Description
Object	An iterable Object that allows async iteration. When you iterate the returned iterable, each element will be an object representing Instance. The API will be called under the hood as needed, once per the page, so you can stop the iteration when you don't need more results. Please see the documentation for more details and examples.

Example

  /**
   * This snippet has been automatically generated and should be regarded as a code template only.
   * It will require modifications to work.
   * It may require correct/in-range values for request initialization.
   * TODO(developer): Uncomment these variables before running the sample.
   */
  /**
   *  Required. The resource name of the instance location using the form:
   *      `projects/{project_id}/locations/{location_id}`
   *  where `location_id` refers to a GCP region.
   */
  // const parent = 'abc123'
  /**
   *  The maximum number of items to return.
   *  If not specified, a default value of 1000 will be used by the service.
   *  Regardless of the page_size value, the response may include a partial list
   *  and a caller should only rely on response's
   *  `next_page_token` google.cloud.redis.v1.ListInstancesResponse.next_page_token 
   *  to determine if there are more instances left to be queried.
   */
  // const pageSize = 1234
  /**
   *  The `next_page_token` value returned from a previous
   *  ListInstances google.cloud.redis.v1.CloudRedis.ListInstances  request, if
   *  any.
   */
  // const pageToken = 'abc123'

  // Imports the Redis library
  const {CloudRedisClient} = require('@google-cloud/redis').v1;

  // Instantiates a client
  const redisClient = new CloudRedisClient();

  async function callListInstances() {
    // Construct request
    const request = {
      parent,
    };

    // Run request
    const iterable = await redisClient.listInstancesAsync(request);
    for await (const response of iterable) {
        console.log(response);
    }
  }

  callListInstances();

listInstancesStream(request, optionsopt) → {Stream}

Equivalent to method.name.toCamelCase(), but returns a NodeJS Stream object.

Parameters:

Name Type Attributes Description

request

Object

The request object that will be sent.

Properties

Name Type Description

parent

string

Required. The resource name of the instance location using the form: projects/{project_id}/locations/{location_id} where location_id refers to a GCP region.

pageSize

number

The maximum number of items to return.

pageToken

string

The next_page_token value returned from a previous ListInstances request, if any.

options

object

Call options. See CallOptions for more details.

Returns:

Type	Description
Stream	An object stream which emits an object representing Instance on 'data' event. The client library will perform auto-pagination by default: it will call the API as many times as needed. Note that it can affect your quota. We recommend using `listInstancesAsync()` method described below for async iteration which you can stop as needed. Please see the documentation for more details and examples.

listLocationsAsync(request, optionsopt) → {Object}

Lists information about the supported locations for this service. Returns an iterable object.

for-await-of syntax is used with the iterable to get response elements on-demand.

Parameters:

Name Type Attributes Description

request

Object

The request object that will be sent.

Properties

Name	Type	Description
`name`	string	The resource that owns the locations collection, if applicable.
`filter`	string	The standard list filter.
`pageSize`	number	The standard list page size.
`pageToken`	string	The standard list page token.

options

object

Call options. See CallOptions for more details.

Returns:

Type	Description
Object	An iterable Object that allows async iteration. When you iterate the returned iterable, each element will be an object representing Location. The API will be called under the hood as needed, once per the page, so you can stop the iteration when you don't need more results. Please see the documentation for more details and examples.

Example

```
const iterable = client.listLocationsAsync(request);
for await (const response of iterable) {
  // process response
}
```

listOperationsAsync(request, optionsopt) → {Object}

Lists operations that match the specified filter in the request. If the server doesn't support this method, it returns UNIMPLEMENTED. Returns an iterable object.

For-await-of syntax is used with the iterable to recursively get response element on-demand.

Parameters:

Name Type Attributes Description

request

Object

The request object that will be sent.

Properties

Name	Type	Attributes	Description
`name`	string		The name of the operation collection.
`filter`	string		The standard list filter.
`pageSize`	number	<optional>	The maximum number of resources contained in the underlying API response. If page streaming is performed per-resource, this parameter does not affect the return value. If page streaming is performed per-page, this determines the maximum number of resources in a page.

options

Object

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

Returns:

Type	Description
Object	An iterable Object that conforms to iteration protocols.

Example

```
const client = longrunning.operationsClient();
for await (const response of client.listOperationsAsync(request));
// doThingsWith(response)
```

locationPath(project, location) → {string}

Return a fully-qualified location resource name string.

Parameters:

Name	Type	Description
`project`	string
`location`	string

Returns:

Type	Description
string	Resource name string.

matchInstanceFromInstanceName(instanceName) → {string}

Parse the instance from Instance resource.

Parameters:

Name	Type	Description
`instanceName`	string	A fully-qualified path representing Instance resource.

Returns:

Type	Description
string	A string representing the instance.

matchLocationFromInstanceName(instanceName) → {string}

Parse the location from Instance resource.

Parameters:

Name	Type	Description
`instanceName`	string	A fully-qualified path representing Instance resource.

Returns:

Type	Description
string	A string representing the location.

matchLocationFromLocationName(locationName) → {string}

Parse the location from Location resource.

Parameters:

Name	Type	Description
`locationName`	string	A fully-qualified path representing Location resource.

Returns:

Type	Description
string	A string representing the location.

matchProjectFromInstanceName(instanceName) → {string}

Parse the project from Instance resource.

Parameters:

Name	Type	Description
`instanceName`	string	A fully-qualified path representing Instance resource.

Returns:

Type	Description
string	A string representing the project.

matchProjectFromLocationName(locationName) → {string}

Parse the project from Location resource.

Parameters:

Name	Type	Description
`locationName`	string	A fully-qualified path representing Location resource.

Returns:

Type	Description
string	A string representing the project.