Cloud PubSub V1 Client - Class PublisherClient (1.48.0)

Version 1.48.0

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Beta

This library is covered by the Pre-GA Offerings Terms of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.

Reference documentation and code samples for the Cloud PubSub V1 Client class PublisherClient.

Service Description: The service that an application uses to manipulate topics, and to send messages to a topic.

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.

This class is currently experimental and may be subject to changes. See Google\Cloud\PubSub\V1\PublisherClient for the stable implementation

Namespace

Google \ Cloud \ PubSub \ V1 \ 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.

createTopic

Creates the given topic with the given name. See the resource name rules.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::createTopicAsync() .

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\Topic 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\PubSub\V1\Topic

deleteTopic

Deletes the topic with the given name. Returns NOT_FOUND if the topic does not exist. After a topic is deleted, a new topic may be created with the same name; this is an entirely new topic with none of the old configuration or subscriptions. Existing subscriptions to this topic are not deleted, but their topic field is set to _deleted-topic_.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::deleteTopicAsync() .

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\DeleteTopicRequest 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.

detachSubscription

Detaches a subscription from this topic. All messages retained in the subscription are dropped. Subsequent Pull and StreamingPull requests will return FAILED_PRECONDITION. If the subscription is a push subscription, pushes to the endpoint will stop.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::detachSubscriptionAsync() .

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\DetachSubscriptionRequest 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\PubSub\V1\DetachSubscriptionResponse

getTopic

Gets the configuration of a topic.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::getTopicAsync() .

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\GetTopicRequest 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\PubSub\V1\Topic

listTopicSnapshots

Lists the names of the snapshots on this topic. Snapshots are used in Seek operations, which allow you to manage message acknowledgments in bulk. That is, you can set the acknowledgment state of messages in an existing subscription to the state captured by a snapshot.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::listTopicSnapshotsAsync() .

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\ListTopicSnapshotsRequest 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

listTopicSubscriptions

Lists the names of the attached subscriptions on this topic.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::listTopicSubscriptionsAsync() .

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\ListTopicSubscriptionsRequest 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

listTopics

Lists matching topics.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::listTopicsAsync() .

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\ListTopicsRequest 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

publish

Adds one or more messages to the topic. Returns NOT_FOUND if the topic does not exist.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::publishAsync() .

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\PublishRequest 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\PubSub\V1\PublishResponse

updateTopic

Updates an existing topic. Note that certain properties of a topic are not modifiable.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::updateTopicAsync() .

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\UpdateTopicRequest 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\PubSub\V1\Topic

getIamPolicy

Gets the access control policy for a resource. Returns an empty policy if the resource exists and does not have a policy set.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::getIamPolicyAsync() .

Parameters
Name	Description
request	Google\Cloud\Iam\V1\GetIamPolicyRequest 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\Iam\V1\Policy

setIamPolicy

Sets the access control policy on the specified resource. Replaces any existing policy.

Can return NOT_FOUND, INVALID_ARGUMENT, and PERMISSION_DENIED errors.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::setIamPolicyAsync() .

Parameters
Name	Description
request	Google\Cloud\Iam\V1\SetIamPolicyRequest 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\Iam\V1\Policy

testIamPermissions

Returns permissions that a caller has on the specified resource. If the resource does not exist, this will return an empty set of permissions, not a NOT_FOUND error.

Note: This operation is designed to be used for building permission-aware UIs and command-line tools, not for authorization checking. This operation may "fail open" without warning.

The async variant is Google\Cloud\PubSub\V1\Client\PublisherClient::testIamPermissionsAsync() .

Parameters
Name	Description
request	Google\Cloud\Iam\V1\TestIamPermissionsRequest 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\Iam\V1\TestIamPermissionsResponse

createTopicAsync

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\Topic
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

deleteTopicAsync

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\DeleteTopicRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

detachSubscriptionAsync

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\DetachSubscriptionRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

getTopicAsync

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\GetTopicRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

listTopicSnapshotsAsync

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\ListTopicSnapshotsRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

listTopicSubscriptionsAsync

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\ListTopicSubscriptionsRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

listTopicsAsync

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\ListTopicsRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

publishAsync

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\PublishRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

updateTopicAsync

Parameters
Name	Description
request	Google\Cloud\PubSub\V1\UpdateTopicRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

getIamPolicyAsync

Parameters
Name	Description
request	Google\Cloud\Iam\V1\GetIamPolicyRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

setIamPolicyAsync

Parameters
Name	Description
request	Google\Cloud\Iam\V1\SetIamPolicyRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

testIamPermissionsAsync

Parameters
Name	Description
request	Google\Cloud\Iam\V1\TestIamPermissionsRequest
optionalArgs = []	array

Returns
Type	Description
GuzzleHttp\Promise\PromiseInterface

static::deletedTopicName

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

Returns
Type	Description
string	The formatted _deleted-topic_ resource.

static::projectName

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

Parameter
Name	Description
project	string

Returns
Type	Description
string	The formatted project resource.

static::projectTopicName

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

Parameters
Name	Description
project	string
topic	string

Returns
Type	Description
string	The formatted project_topic resource.

static::schemaName

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

Parameters
Name	Description
project	string
schema	string

Returns
Type	Description
string	The formatted schema resource.

static::subscriptionName

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

Parameters
Name	Description
project	string
subscription	string

Returns
Type	Description
string	The formatted subscription resource.

static::topicName

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

Parameters
Name	Description
project	string
topic	string

Returns
Type	Description
string	The formatted topic 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

• deletedTopic: deleted-topic
• project: projects/{project}
• projectTopic: projects/{project}/topics/{topic}
• schema: projects/{project}/schemas/{schema}
• subscription: projects/{project}/subscriptions/{subscription}
• topic: projects/{project}/topics/{topic}

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.