Google Cloud Discovery Engine V1beta Client - Class RecommendationServiceClient (0.4.0)

Reference documentation and code samples for the Google Cloud Discovery Engine V1beta Client class RecommendationServiceClient.

Service Description: Service for making recommendations.

This class is currently experimental and may be subject to changes.

Namespace

Google \ Cloud \ DiscoveryEngine \ V1beta \ Client

Methods

__construct

Constructor.

Parameters
Name	Description
`options`	`array` Optional. Options for configuring the service API wrapper.
`↳ apiEndpoint`	`string` The address of the API remote host. May optionally include the port, formatted as "
`↳ credentials`	`string\|array\|FetchAuthTokenInterface\|CredentialsWrapper` The credentials to be used by the client to authorize API calls. This option accepts either a path to a credentials file, or a decoded credentials file as a PHP array. Advanced usage: In addition, this option can also accept a pre-constructed Google\Auth\FetchAuthTokenInterface object or Google\ApiCore\CredentialsWrapper object. Note that when one of these objects are provided, any settings in $credentialsConfig will be ignored.
`↳ credentialsConfig`	`array` Options used to configure credentials, including auth token caching, for the client. For a full list of supporting configuration options, see Google\ApiCore\CredentialsWrapper::build() .
`↳ disableRetries`	`bool` Determines whether or not retries defined by the client configuration should be disabled. Defaults to `false`.
`↳ clientConfig`	`string\|array` Client method configuration, including retry settings. This option can be either a path to a JSON file, or a PHP array containing the decoded JSON data. By default this settings points to the default client config file, which is provided in the resources folder.
`↳ transport`	`string\|TransportInterface` The transport used for executing network requests. May be either the string `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system. Advanced usage: Additionally, it is possible to pass in an already instantiated Google\ApiCore\Transport\TransportInterface object. Note that when this object is provided, any settings in $transportConfig, and any $apiEndpoint setting, will be ignored.
`↳ transportConfig`	`array` Configuration options that will be used to construct the transport. Options for each supported transport type should be passed in a key for that transport. For example: $transportConfig = [ 'grpc' => [...], 'rest' => [...], ]; See the Google\ApiCore\Transport\GrpcTransport::build() and Google\ApiCore\Transport\RestTransport::build() methods for the supported options.
`↳ clientCertSource`	`callable` A callable which returns the client cert as a string. This can be used to provide a certificate and private key to the transport layer for mTLS.

recommend

Makes a recommendation, which requires a contextual user event.

The async variant is Google\Cloud\DiscoveryEngine\V1beta\Client\BaseClient\self::recommendAsync() .

Parameters
Name	Description
`request`	`Google\Cloud\DiscoveryEngine\V1beta\RecommendRequest` A request to house fields associated with the call.
`callOptions`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
Type	Description
`Google\Cloud\DiscoveryEngine\V1beta\RecommendResponse`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\DiscoveryEngine\V1beta\Client\RecommendationServiceClient;
use Google\Cloud\DiscoveryEngine\V1beta\RecommendRequest;
use Google\Cloud\DiscoveryEngine\V1beta\RecommendResponse;
use Google\Cloud\DiscoveryEngine\V1beta\UserEvent;

/**
 * @param string $formattedServingConfig Full resource name of the format:
 *                                       `projects/&#42;/locations/global/collections/&#42;/dataStores/&#42;/servingConfigs/*`
 *
 *                                       Before you can request recommendations from your model, you must create at
 *                                       least one serving config  for it. Please see
 *                                       {@see RecommendationServiceClient::servingConfigName()} for help formatting this field.
 * @param string $userEventEventType     User event type. Allowed values are:
 *
 *                                       Generic values:
 *
 *                                       * `search`: Search for Documents.
 *                                       * `view-item`: Detailed page view of a Document.
 *                                       * `view-item-list`: View of a panel or ordered list of Documents.
 *                                       * `view-home-page`: View of the home page.
 *                                       * `view-category-page`: View of a category page, e.g. Home > Men > Jeans
 *
 *                                       Retail-related values:
 *
 *                                       * `add-to-cart`: Add an item(s) to cart, e.g. in Retail online shopping
 *                                       * `purchase`: Purchase an item(s)
 *
 *                                       Media-related values:
 *
 *                                       * `media-play`: Start/resume watching a video, playing a song, etc.
 *                                       * `media-complete`: Finished or stopped midway through a video, song, etc.
 * @param string $userEventUserPseudoId  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 log in/out of the website.
 *
 *                                       Do not set the field to the same fixed ID for different users. This mixes
 *                                       the event history of those users together, which results in degraded model
 *                                       quality.
 *
 *                                       The field must be a UTF-8 encoded string with a length limit of 128
 *                                       characters. Otherwise, an INVALID_ARGUMENT error is returned.
 *
 *                                       The field should not contain PII or user-data. We recommend to use Google
 *                                       Analytics [Client
 *                                       ID](https://developers.google.com/analytics/devguides/collection/analyticsjs/field-reference#clientId)
 *                                       for this field.
 */
function recommend_sample(
    string $formattedServingConfig,
    string $userEventEventType,
    string $userEventUserPseudoId
): void {
    // Create a client.
    $recommendationServiceClient = new RecommendationServiceClient();

    // Prepare the request message.
    $userEvent = (new UserEvent())
        ->setEventType($userEventEventType)
        ->setUserPseudoId($userEventUserPseudoId);
    $request = (new RecommendRequest())
        ->setServingConfig($formattedServingConfig)
        ->setUserEvent($userEvent);

    // Call the API and handle any network failures.
    try {
        /** @var RecommendResponse $response */
        $response = $recommendationServiceClient->recommend($request);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample 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.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $formattedServingConfig = RecommendationServiceClient::servingConfigName(
        '[PROJECT]',
        '[LOCATION]',
        '[DATA_STORE]',
        '[SERVING_CONFIG]'
    );
    $userEventEventType = '[EVENT_TYPE]';
    $userEventUserPseudoId = '[USER_PSEUDO_ID]';

    recommend_sample($formattedServingConfig, $userEventEventType, $userEventUserPseudoId);
}

recommendAsync

Parameters
Name	Description
`request`	`Google\Cloud\DiscoveryEngine\V1beta\RecommendRequest`
`optionalArgs = []`	`array`

Returns
Type	Description
`GuzzleHttp\Promise\PromiseInterface`

static::documentName

Formats a string containing the fully-qualified path to represent a document resource.

Parameters
Name	Description
`project`	`string`
`location`	`string`
`dataStore`	`string`
`branch`	`string`
`document`	`string`

Returns
Type	Description
`string`	The formatted document resource.

static::projectLocationCollectionDataStoreBranchDocumentName

Formats a string containing the fully-qualified path to represent a project_location_collection_data_store_branch_document resource.

Parameters
Name	Description
`project`	`string`
`location`	`string`
`collection`	`string`
`dataStore`	`string`
`branch`	`string`
`document`	`string`

Returns
Type	Description
`string`	The formatted project_location_collection_data_store_branch_document resource.

static::projectLocationCollectionDataStoreServingConfigName

Formats a string containing the fully-qualified path to represent a project_location_collection_data_store_serving_config resource.

Parameters
Name	Description
`project`	`string`
`location`	`string`
`collection`	`string`
`dataStore`	`string`
`servingConfig`	`string`

Returns
Type	Description
`string`	The formatted project_location_collection_data_store_serving_config resource.

static::projectLocationDataStoreBranchDocumentName

Formats a string containing the fully-qualified path to represent a project_location_data_store_branch_document resource.

Parameters
Name	Description
`project`	`string`
`location`	`string`
`dataStore`	`string`
`branch`	`string`
`document`	`string`

Returns
Type	Description
`string`	The formatted project_location_data_store_branch_document resource.

static::projectLocationDataStoreServingConfigName

Formats a string containing the fully-qualified path to represent a project_location_data_store_serving_config resource.

Parameters
Name	Description
`project`	`string`
`location`	`string`
`dataStore`	`string`
`servingConfig`	`string`

Returns
Type	Description
`string`	The formatted project_location_data_store_serving_config resource.

static::servingConfigName

Formats a string containing the fully-qualified path to represent a serving_config resource.

Parameters
Name	Description
`project`	`string`
`location`	`string`
`dataStore`	`string`
`servingConfig`	`string`

Returns
Type	Description
`string`	The formatted serving_config resource.

static::parseName

Parses a formatted name string and returns an associative array of the components in the name.

The following name formats are supported: Template: Pattern

document: projects/{project}/locations/{location}/dataStores/{data_store}/branches/{branch}/documents/{document}
projectLocationCollectionDataStoreBranchDocument: projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}/documents/{document}
projectLocationCollectionDataStoreServingConfig: projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/servingConfigs/{serving_config}
projectLocationDataStoreBranchDocument: projects/{project}/locations/{location}/dataStores/{data_store}/branches/{branch}/documents/{document}
projectLocationDataStoreServingConfig: projects/{project}/locations/{location}/dataStores/{data_store}/servingConfigs/{serving_config}
servingConfig: projects/{project}/locations/{location}/dataStores/{data_store}/servingConfigs/{serving_config}

The optional $template argument can be supplied to specify a particular pattern, and must match one of the templates listed above. If no $template argument is provided, or if the $template argument does not match one of the templates listed, then parseName will check each of the supported templates, and return the first match.

Parameters
Name	Description
`formattedName`	`string` The formatted name string
`template`	`string` Optional name of template to match

Returns
Type	Description
`array`	An associative array from name component IDs to component values.