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 \ ClientMethods
__construct
Constructor.
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. Important : If you accept a credential configuration (credential JSON/File/Stream) from an external source for authentication to Google Cloud Platform, you must validate it before providing it to any Google API or library. Providing an unvalidated credential configuration to Google APIs can compromise the security of your systems and data. For more information https://cloud.google.com/docs/authentication/external/externally-sourced-credentials
↳ 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.
↳ logger
false|LoggerInterface
A PSR-3 compliant logger. If set to false, logging is disabled, ignoring the 'GOOGLE_SDK_PHP_LOGGING' environment flag
createContext
Creates a context.
If the specified context already exists, overrides the context.
The async variant is ContextsClient::createContextAsync() .
request
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.
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 ContextsClient::deleteAllContextsAsync() .
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.
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 ContextsClient::deleteContextAsync() .
request
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.
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 ContextsClient::getContextAsync() .
request
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.
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 ContextsClient::listContextsAsync() .
request
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.
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 ContextsClient::updateContextAsync() .
request
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.
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 ContextsClient::getLocationAsync() .
request
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.
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 ContextsClient::listLocationsAsync() .
request
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.
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());
}
}
createContextAsync
optionalArgs
array
deleteAllContextsAsync
optionalArgs
array
deleteContextAsync
optionalArgs
array
getContextAsync
listContextsAsync
optionalArgs
array
updateContextAsync
optionalArgs
array
getLocationAsync
listLocationsAsync
static::contextName
Formats a string containing the fully-qualified path to represent a context resource.
project
string
session
string
context
string
string
static::projectEnvironmentUserSessionName
Formats a string containing the fully-qualified path to represent a project_environment_user_session resource.
project
string
environment
string
user
string
session
string
string
static::projectEnvironmentUserSessionContextName
Formats a string containing the fully-qualified path to represent a project_environment_user_session_context resource.
project
string
environment
string
user
string
session
string
context
string
string
static::projectLocationEnvironmentUserSessionName
Formats a string containing the fully-qualified path to represent a project_location_environment_user_session resource.
project
string
location
string
environment
string
user
string
session
string
string
static::projectLocationEnvironmentUserSessionContextName
Formats a string containing the fully-qualified path to represent a project_location_environment_user_session_context resource.
project
string
location
string
environment
string
user
string
session
string
context
string
string
static::projectLocationSessionName
Formats a string containing the fully-qualified path to represent a project_location_session resource.
project
string
location
string
session
string
string
static::projectLocationSessionContextName
Formats a string containing the fully-qualified path to represent a project_location_session_context resource.
project
string
location
string
session
string
context
string
string
static::projectSessionName
Formats a string containing the fully-qualified path to represent a project_session resource.
project
string
session
string
string
static::projectSessionContextName
Formats a string containing the fully-qualified path to represent a project_session_context resource.
project
string
session
string
context
string
string
static::sessionName
Formats a string containing the fully-qualified path to represent a session resource.
project
string
session
string
string
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.
formattedName
string
The formatted name string
template
?string
Optional name of template to match
array