Google Cloud Dialogflow V2 Client - Class ContextsClient (1.15.1)

Reference documentation and code samples for the Google Cloud Dialogflow V2 Client class ContextsClient.

Service Description: Service for managing Contexts.

This class provides the ability to make remote calls to the backing service through method calls that map to API methods.

Many parameters require resource names to be formatted in a particular way. To assist with these names, this class includes a format method for each type of name, and additionally a parseName method to extract the individual identifiers contained within formatted names that are returned by the API.

Namespace

Google \ Cloud \ Dialogflow \ V2 \ 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.

createContext

Creates a context.

If the specified context already exists, overrides the context.

The async variant is Google\Cloud\Dialogflow\V2\Client\ContextsClient::createContextAsync() .

Parameters
Name Description
request Google\Cloud\Dialogflow\V2\CreateContextRequest

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\Dialogflow\V2\Context
Example
use Google\ApiCore\ApiException;
use Google\Cloud\Dialogflow\V2\Client\ContextsClient;
use Google\Cloud\Dialogflow\V2\Context;
use Google\Cloud\Dialogflow\V2\CreateContextRequest;

/**
 * @param string $formattedParent The session to create a context for.
 *                                Format: `projects/<Project ID>/agent/sessions/<Session ID>` or
 *                                `projects/<Project ID>/agent/environments/<Environment ID>/users/<User
 *                                ID>/sessions/<Session ID>`.
 *                                If `Environment ID` is not specified, we assume default 'draft'
 *                                environment. If `User ID` is not specified, we assume default '-' user. Please see
 *                                {@see ContextsClient::sessionName()} for help formatting this field.
 * @param string $contextName     The unique identifier of the context. Format:
 *                                `projects/<Project ID>/agent/sessions/<Session ID>/contexts/<Context ID>`,
 *                                or `projects/<Project ID>/agent/environments/<Environment ID>/users/<User
 *                                ID>/sessions/<Session ID>/contexts/<Context ID>`.
 *
 *                                The `Context ID` is always converted to lowercase, may only contain
 *                                characters in `a-zA-Z0-9_-%` and may be at most 250 bytes long.
 *
 *                                If `Environment ID` is not specified, we assume default 'draft'
 *                                environment. If `User ID` is not specified, we assume default '-' user.
 *
 *                                The following context names are reserved for internal use by Dialogflow.
 *                                You should not use these contexts or create contexts with these names:
 *
 *                                * `__system_counters__`
 *                                * `*_id_dialog_context`
 *                                * `*_dialog_params_size`
 */
function create_context_sample(string $formattedParent, string $contextName): void
{
    // Create a client.
    $contextsClient = new ContextsClient();

    // Prepare the request message.
    $context = (new Context())
        ->setName($contextName);
    $request = (new CreateContextRequest())
        ->setParent($formattedParent)
        ->setContext($context);

    // Call the API and handle any network failures.
    try {
        /** @var Context $response */
        $response = $contextsClient->createContext($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
{
    $formattedParent = ContextsClient::sessionName('[PROJECT]', '[SESSION]');
    $contextName = '[NAME]';

    create_context_sample($formattedParent, $contextName);
}

deleteAllContexts

Deletes all active contexts in the specified session.

The async variant is Google\Cloud\Dialogflow\V2\Client\ContextsClient::deleteAllContextsAsync() .

Parameters
Name Description
request Google\Cloud\Dialogflow\V2\DeleteAllContextsRequest

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.

Example
use Google\ApiCore\ApiException;
use Google\Cloud\Dialogflow\V2\Client\ContextsClient;
use Google\Cloud\Dialogflow\V2\DeleteAllContextsRequest;

/**
 * @param string $formattedParent The name of the session to delete all contexts from. Format:
 *                                `projects/<Project ID>/agent/sessions/<Session ID>` or `projects/<Project
 *                                ID>/agent/environments/<Environment ID>/users/<User ID>/sessions/<Session
 *                                ID>`.
 *                                If `Environment ID` is not specified we assume default 'draft' environment.
 *                                If `User ID` is not specified, we assume default '-' user. Please see
 *                                {@see ContextsClient::sessionName()} for help formatting this field.
 */
function delete_all_contexts_sample(string $formattedParent): void
{
    // Create a client.
    $contextsClient = new ContextsClient();

    // Prepare the request message.
    $request = (new DeleteAllContextsRequest())
        ->setParent($formattedParent);

    // Call the API and handle any network failures.
    try {
        $contextsClient->deleteAllContexts($request);
        printf('Call completed successfully.' . PHP_EOL);
    } 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
{
    $formattedParent = ContextsClient::sessionName('[PROJECT]', '[SESSION]');

    delete_all_contexts_sample($formattedParent);
}

deleteContext

Deletes the specified context.

The async variant is Google\Cloud\Dialogflow\V2\Client\ContextsClient::deleteContextAsync() .

Parameters
Name Description
request Google\Cloud\Dialogflow\V2\DeleteContextRequest

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.

Example
use Google\ApiCore\ApiException;
use Google\Cloud\Dialogflow\V2\Client\ContextsClient;
use Google\Cloud\Dialogflow\V2\DeleteContextRequest;

/**
 * @param string $formattedName The name of the context to delete. Format:
 *                              `projects/<Project ID>/agent/sessions/<Session ID>/contexts/<Context ID>`
 *                              or `projects/<Project ID>/agent/environments/<Environment ID>/users/<User
 *                              ID>/sessions/<Session ID>/contexts/<Context ID>`.
 *                              If `Environment ID` is not specified, we assume default 'draft'
 *                              environment. If `User ID` is not specified, we assume default '-' user. Please see
 *                              {@see ContextsClient::contextName()} for help formatting this field.
 */
function delete_context_sample(string $formattedName): void
{
    // Create a client.
    $contextsClient = new ContextsClient();

    // Prepare the request message.
    $request = (new DeleteContextRequest())
        ->setName($formattedName);

    // Call the API and handle any network failures.
    try {
        $contextsClient->deleteContext($request);
        printf('Call completed successfully.' . PHP_EOL);
    } 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
{
    $formattedName = ContextsClient::contextName('[PROJECT]', '[SESSION]', '[CONTEXT]');

    delete_context_sample($formattedName);
}

getContext

Retrieves the specified context.

The async variant is Google\Cloud\Dialogflow\V2\Client\ContextsClient::getContextAsync() .

Parameters
Name Description
request Google\Cloud\Dialogflow\V2\GetContextRequest

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\Dialogflow\V2\Context
Example
use Google\ApiCore\ApiException;
use Google\Cloud\Dialogflow\V2\Client\ContextsClient;
use Google\Cloud\Dialogflow\V2\Context;
use Google\Cloud\Dialogflow\V2\GetContextRequest;

/**
 * @param string $formattedName The name of the context. Format:
 *                              `projects/<Project ID>/agent/sessions/<Session ID>/contexts/<Context ID>`
 *                              or `projects/<Project ID>/agent/environments/<Environment ID>/users/<User
 *                              ID>/sessions/<Session ID>/contexts/<Context ID>`.
 *                              If `Environment ID` is not specified, we assume default 'draft'
 *                              environment. If `User ID` is not specified, we assume default '-' user. Please see
 *                              {@see ContextsClient::contextName()} for help formatting this field.
 */
function get_context_sample(string $formattedName): void
{
    // Create a client.
    $contextsClient = new ContextsClient();

    // Prepare the request message.
    $request = (new GetContextRequest())
        ->setName($formattedName);

    // Call the API and handle any network failures.
    try {
        /** @var Context $response */
        $response = $contextsClient->getContext($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
{
    $formattedName = ContextsClient::contextName('[PROJECT]', '[SESSION]', '[CONTEXT]');

    get_context_sample($formattedName);
}

listContexts

Returns the list of all contexts in the specified session.

The async variant is Google\Cloud\Dialogflow\V2\Client\ContextsClient::listContextsAsync() .

Parameters
Name Description
request Google\Cloud\Dialogflow\V2\ListContextsRequest

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\ApiCore\PagedListResponse
Example
use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Dialogflow\V2\Client\ContextsClient;
use Google\Cloud\Dialogflow\V2\Context;
use Google\Cloud\Dialogflow\V2\ListContextsRequest;

/**
 * @param string $formattedParent The session to list all contexts from.
 *                                Format: `projects/<Project ID>/agent/sessions/<Session ID>` or
 *                                `projects/<Project ID>/agent/environments/<Environment ID>/users/<User
 *                                ID>/sessions/<Session ID>`.
 *                                If `Environment ID` is not specified, we assume default 'draft'
 *                                environment. If `User ID` is not specified, we assume default '-' user. Please see
 *                                {@see ContextsClient::sessionName()} for help formatting this field.
 */
function list_contexts_sample(string $formattedParent): void
{
    // Create a client.
    $contextsClient = new ContextsClient();

    // Prepare the request message.
    $request = (new ListContextsRequest())
        ->setParent($formattedParent);

    // Call the API and handle any network failures.
    try {
        /** @var PagedListResponse $response */
        $response = $contextsClient->listContexts($request);

        /** @var Context $element */
        foreach ($response as $element) {
            printf('Element data: %s' . PHP_EOL, $element->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
{
    $formattedParent = ContextsClient::sessionName('[PROJECT]', '[SESSION]');

    list_contexts_sample($formattedParent);
}

updateContext

Updates the specified context.

The async variant is Google\Cloud\Dialogflow\V2\Client\ContextsClient::updateContextAsync() .

Parameters
Name Description
request Google\Cloud\Dialogflow\V2\UpdateContextRequest

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\Dialogflow\V2\Context
Example
use Google\ApiCore\ApiException;
use Google\Cloud\Dialogflow\V2\Client\ContextsClient;
use Google\Cloud\Dialogflow\V2\Context;
use Google\Cloud\Dialogflow\V2\UpdateContextRequest;

/**
 * @param string $contextName The unique identifier of the context. Format:
 *                            `projects/<Project ID>/agent/sessions/<Session ID>/contexts/<Context ID>`,
 *                            or `projects/<Project ID>/agent/environments/<Environment ID>/users/<User
 *                            ID>/sessions/<Session ID>/contexts/<Context ID>`.
 *
 *                            The `Context ID` is always converted to lowercase, may only contain
 *                            characters in `a-zA-Z0-9_-%` and may be at most 250 bytes long.
 *
 *                            If `Environment ID` is not specified, we assume default 'draft'
 *                            environment. If `User ID` is not specified, we assume default '-' user.
 *
 *                            The following context names are reserved for internal use by Dialogflow.
 *                            You should not use these contexts or create contexts with these names:
 *
 *                            * `__system_counters__`
 *                            * `*_id_dialog_context`
 *                            * `*_dialog_params_size`
 */
function update_context_sample(string $contextName): void
{
    // Create a client.
    $contextsClient = new ContextsClient();

    // Prepare the request message.
    $context = (new Context())
        ->setName($contextName);
    $request = (new UpdateContextRequest())
        ->setContext($context);

    // Call the API and handle any network failures.
    try {
        /** @var Context $response */
        $response = $contextsClient->updateContext($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
{
    $contextName = '[NAME]';

    update_context_sample($contextName);
}

getLocation

Gets information about a location.

The async variant is Google\Cloud\Dialogflow\V2\Client\ContextsClient::getLocationAsync() .

Parameters
Name Description
request Google\Cloud\Location\GetLocationRequest

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\Location\Location
Example
use Google\ApiCore\ApiException;
use Google\Cloud\Dialogflow\V2\Client\ContextsClient;
use Google\Cloud\Location\GetLocationRequest;
use Google\Cloud\Location\Location;

/**
 * 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 get_location_sample(): void
{
    // Create a client.
    $contextsClient = new ContextsClient();

    // Prepare the request message.
    $request = new GetLocationRequest();

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

listLocations

Lists information about the supported locations for this service.

The async variant is Google\Cloud\Dialogflow\V2\Client\ContextsClient::listLocationsAsync() .

Parameters
Name Description
request Google\Cloud\Location\ListLocationsRequest

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\ApiCore\PagedListResponse
Example
use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Dialogflow\V2\Client\ContextsClient;
use Google\Cloud\Location\ListLocationsRequest;
use Google\Cloud\Location\Location;

/**
 * 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 list_locations_sample(): void
{
    // Create a client.
    $contextsClient = new ContextsClient();

    // Prepare the request message.
    $request = new ListLocationsRequest();

    // Call the API and handle any network failures.
    try {
        /** @var PagedListResponse $response */
        $response = $contextsClient->listLocations($request);

        /** @var Location $element */
        foreach ($response as $element) {
            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
        }
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

PromiseInterface

Returns
Type Description
void

static::contextName

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

Parameters
Name Description
project string
session string
context string
Returns
Type Description
string The formatted context resource.

static::projectEnvironmentUserSessionName

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

Parameters
Name Description
project string
environment string
user string
session string
Returns
Type Description
string The formatted project_environment_user_session resource.

static::projectEnvironmentUserSessionContextName

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

Parameters
Name Description
project string
environment string
user string
session string
context string
Returns
Type Description
string The formatted project_environment_user_session_context resource.

static::projectLocationEnvironmentUserSessionName

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

Parameters
Name Description
project string
location string
environment string
user string
session string
Returns
Type Description
string The formatted project_location_environment_user_session resource.

static::projectLocationEnvironmentUserSessionContextName

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

Parameters
Name Description
project string
location string
environment string
user string
session string
context string
Returns
Type Description
string The formatted project_location_environment_user_session_context resource.

static::projectLocationSessionName

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

Parameters
Name Description
project string
location string
session string
Returns
Type Description
string The formatted project_location_session resource.

static::projectLocationSessionContextName

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

Parameters
Name Description
project string
location string
session string
context string
Returns
Type Description
string The formatted project_location_session_context resource.

static::projectSessionName

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

Parameters
Name Description
project string
session string
Returns
Type Description
string The formatted project_session resource.

static::projectSessionContextName

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

Parameters
Name Description
project string
session string
context string
Returns
Type Description
string The formatted project_session_context resource.

static::sessionName

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

Parameters
Name Description
project string
session string
Returns
Type Description
string The formatted session 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

  • context: projects/{project}/agent/sessions/{session}/contexts/{context}
  • projectEnvironmentUserSession: projects/{project}/agent/environments/{environment}/users/{user}/sessions/{session}
  • projectEnvironmentUserSessionContext: projects/{project}/agent/environments/{environment}/users/{user}/sessions/{session}/contexts/{context}
  • projectLocationEnvironmentUserSession: projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}
  • projectLocationEnvironmentUserSessionContext: projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}/contexts/{context}
  • projectLocationSession: projects/{project}/locations/{location}/agent/sessions/{session}
  • projectLocationSessionContext: projects/{project}/locations/{location}/agent/sessions/{session}/contexts/{context}
  • projectSession: projects/{project}/agent/sessions/{session}
  • projectSessionContext: projects/{project}/agent/sessions/{session}/contexts/{context}
  • session: projects/{project}/agent/sessions/{session}

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.