Cloud Pub/Sub V1 API - Class Google::Cloud::PubSub::V1::Publisher::Client (v0.15.0)

Reference documentation and code samples for the Cloud Pub/Sub V1 API class Google::Cloud::PubSub::V1::Publisher::Client.

Client for the Publisher service.

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

Inherits

  • Object

Includes

Methods

.configure

def self.configure() { |config| ... } -> Client::Configuration

Configure the Publisher Client class.

See Configuration for a description of the configuration fields.

Yields
  • (config) — Configure the Client client.
Yield Parameter
Returns
Example 
# Modify the configuration for all Publisher clients
::Google::Cloud::PubSub::V1::Publisher::Client.configure do |config|
  config.timeout = 10.0
end

#configure

def configure() { |config| ... } -> Client::Configuration

Configure the Publisher Client instance.

The configuration is set to the derived mode, meaning that values can be changed, but structural changes (adding new fields, etc.) are not allowed. Structural changes should be made on Client.configure.

See Configuration for a description of the configuration fields.

Yields
  • (config) — Configure the Client client.
Yield Parameter
Returns

#create_topic

def create_topic(request, options = nil) -> ::Google::Cloud::PubSub::V1::Topic
def create_topic(name: nil, labels: nil, message_storage_policy: nil, kms_key_name: nil, schema_settings: nil, satisfies_pzs: nil, message_retention_duration: nil) -> ::Google::Cloud::PubSub::V1::Topic

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

Overloads 
def create_topic(request, options = nil) -> ::Google::Cloud::PubSub::V1::Topic
Pass arguments to create_topic via a request object, either of type Topic or an equivalent Hash.
Parameters
  • request (::Google::Cloud::PubSub::V1::Topic, ::Hash) — A request object representing the call parameters. Required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash.
  • options (::Gapic::CallOptions, ::Hash) — Overrides the default settings for this call, e.g, timeout, retries, etc. Optional. 
def create_topic(name: nil, labels: nil, message_storage_policy: nil, kms_key_name: nil, schema_settings: nil, satisfies_pzs: nil, message_retention_duration: nil) -> ::Google::Cloud::PubSub::V1::Topic
Pass arguments to create_topic via keyword arguments. Note that at least one keyword argument is required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash as a request object (see above).
Parameters
  • name (::String) — Required. The name of the topic. It must have the format "projects/{project}/topics/{topic}". {topic} must start with a letter, and contain only letters ([A-Za-z]), numbers ([0-9]), dashes (-), underscores (_), periods (.), tildes (~), plus (+) or percent signs (%). It must be between 3 and 255 characters in length, and it must not start with "goog".
  • labels (::Hash{::String => ::String}) — See Creating and managing labels.
  • message_storage_policy (::Google::Cloud::PubSub::V1::MessageStoragePolicy, ::Hash) — Policy constraining the set of Google Cloud Platform regions where messages published to the topic may be stored. If not present, then no constraints are in effect.
  • kms_key_name (::String) — The resource name of the Cloud KMS CryptoKey to be used to protect access to messages published on this topic.

    The expected format is projects/*/locations/*/keyRings/*/cryptoKeys/*.

  • schema_settings (::Google::Cloud::PubSub::V1::SchemaSettings, ::Hash) — Settings for validating messages published against a schema.
  • satisfies_pzs (::Boolean) — Reserved for future use. This field is set only in responses from the server; it is ignored if it is set in any requests.
  • message_retention_duration (::Google::Protobuf::Duration, ::Hash) — Indicates the minimum duration to retain a message after it is published to the topic. If this field is set, messages published to the topic in the last message_retention_duration are always available to subscribers. For instance, it allows any attached subscription to seek to a timestamp that is up to message_retention_duration in the past. If this field is not set, message retention is controlled by settings on individual subscriptions. Cannot be more than 31 days or less than 10 minutes.
Yields
  • (response, operation) — Access the result along with the RPC operation
Yield Parameters
Returns
Raises
  • (::Google::Cloud::Error) — if the RPC is aborted.
Example

Basic example

require "google/cloud/pubsub/v1"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::PubSub::V1::Topic.new

# Call the create_topic method.
result = client.create_topic request

# The returned object is of type Google::Cloud::PubSub::V1::Topic.
p result

#delete_topic

def delete_topic(request, options = nil) -> ::Google::Protobuf::Empty
def delete_topic(topic: nil) -> ::Google::Protobuf::Empty

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.

Overloads 
def delete_topic(request, options = nil) -> ::Google::Protobuf::Empty
Pass arguments to delete_topic via a request object, either of type DeleteTopicRequest or an equivalent Hash.
Parameters
  • request (::Google::Cloud::PubSub::V1::DeleteTopicRequest, ::Hash) — A request object representing the call parameters. Required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash.
  • options (::Gapic::CallOptions, ::Hash) — Overrides the default settings for this call, e.g, timeout, retries, etc. Optional. 
def delete_topic(topic: nil) -> ::Google::Protobuf::Empty
Pass arguments to delete_topic via keyword arguments. Note that at least one keyword argument is required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash as a request object (see above).
Parameter
  • topic (::String) — Required. Name of the topic to delete. Format is projects/{project}/topics/{topic}.
Yields
  • (response, operation) — Access the result along with the RPC operation
Yield Parameters
Returns
Raises
  • (::Google::Cloud::Error) — if the RPC is aborted.
Example

Basic example

require "google/cloud/pubsub/v1"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::PubSub::V1::DeleteTopicRequest.new

# Call the delete_topic method.
result = client.delete_topic request

# The returned object is of type Google::Protobuf::Empty.
p result

#detach_subscription

def detach_subscription(request, options = nil) -> ::Google::Cloud::PubSub::V1::DetachSubscriptionResponse
def detach_subscription(subscription: nil) -> ::Google::Cloud::PubSub::V1::DetachSubscriptionResponse

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.

Overloads 
def detach_subscription(request, options = nil) -> ::Google::Cloud::PubSub::V1::DetachSubscriptionResponse
Pass arguments to detach_subscription via a request object, either of type DetachSubscriptionRequest or an equivalent Hash.
Parameters
  • request (::Google::Cloud::PubSub::V1::DetachSubscriptionRequest, ::Hash) — A request object representing the call parameters. Required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash.
  • options (::Gapic::CallOptions, ::Hash) — Overrides the default settings for this call, e.g, timeout, retries, etc. Optional. 
def detach_subscription(subscription: nil) -> ::Google::Cloud::PubSub::V1::DetachSubscriptionResponse
Pass arguments to detach_subscription via keyword arguments. Note that at least one keyword argument is required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash as a request object (see above).
Parameter
  • subscription (::String) — Required. The subscription to detach. Format is projects/{project}/subscriptions/{subscription}.
Yields
  • (response, operation) — Access the result along with the RPC operation
Yield Parameters
Returns
Raises
  • (::Google::Cloud::Error) — if the RPC is aborted.
Example

Basic example

require "google/cloud/pubsub/v1"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::PubSub::V1::DetachSubscriptionRequest.new

# Call the detach_subscription method.
result = client.detach_subscription request

# The returned object is of type Google::Cloud::PubSub::V1::DetachSubscriptionResponse.
p result

#get_topic

def get_topic(request, options = nil) -> ::Google::Cloud::PubSub::V1::Topic
def get_topic(topic: nil) -> ::Google::Cloud::PubSub::V1::Topic

Gets the configuration of a topic.

Overloads 
def get_topic(request, options = nil) -> ::Google::Cloud::PubSub::V1::Topic
Pass arguments to get_topic via a request object, either of type GetTopicRequest or an equivalent Hash.
Parameters
  • request (::Google::Cloud::PubSub::V1::GetTopicRequest, ::Hash) — A request object representing the call parameters. Required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash.
  • options (::Gapic::CallOptions, ::Hash) — Overrides the default settings for this call, e.g, timeout, retries, etc. Optional. 
def get_topic(topic: nil) -> ::Google::Cloud::PubSub::V1::Topic
Pass arguments to get_topic via keyword arguments. Note that at least one keyword argument is required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash as a request object (see above).
Parameter
  • topic (::String) — Required. The name of the topic to get. Format is projects/{project}/topics/{topic}.
Yields
  • (response, operation) — Access the result along with the RPC operation
Yield Parameters
Returns
Raises
  • (::Google::Cloud::Error) — if the RPC is aborted.
Example

Basic example

require "google/cloud/pubsub/v1"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::PubSub::V1::GetTopicRequest.new

# Call the get_topic method.
result = client.get_topic request

# The returned object is of type Google::Cloud::PubSub::V1::Topic.
p result

#iam_policy_client

def iam_policy_client() -> Google::Iam::V1::IAMPolicy::Client

Get the associated client for mix-in of the IAMPolicy.

Returns
  • (Google::Iam::V1::IAMPolicy::Client)

#initialize

def initialize() { |config| ... } -> Client

Create a new Publisher client object.

Yields
  • (config) — Configure the Publisher client.
Yield Parameter
Returns
  • (Client) — a new instance of Client
Example 
# Create a client using the default configuration
client = ::Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a client using a custom configuration
client = ::Google::Cloud::PubSub::V1::Publisher::Client.new do |config|
  config.timeout = 10.0
end

#list_topic_snapshots

def list_topic_snapshots(request, options = nil) -> ::Google::Cloud::PubSub::V1::ListTopicSnapshotsResponse
def list_topic_snapshots(topic: nil, page_size: nil, page_token: nil) -> ::Google::Cloud::PubSub::V1::ListTopicSnapshotsResponse

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.

Overloads 
def list_topic_snapshots(request, options = nil) -> ::Google::Cloud::PubSub::V1::ListTopicSnapshotsResponse
Pass arguments to list_topic_snapshots via a request object, either of type ListTopicSnapshotsRequest or an equivalent Hash.
Parameters
  • request (::Google::Cloud::PubSub::V1::ListTopicSnapshotsRequest, ::Hash) — A request object representing the call parameters. Required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash.
  • options (::Gapic::CallOptions, ::Hash) — Overrides the default settings for this call, e.g, timeout, retries, etc. Optional. 
def list_topic_snapshots(topic: nil, page_size: nil, page_token: nil) -> ::Google::Cloud::PubSub::V1::ListTopicSnapshotsResponse
Pass arguments to list_topic_snapshots via keyword arguments. Note that at least one keyword argument is required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash as a request object (see above).
Parameters
  • topic (::String) — Required. The name of the topic that snapshots are attached to. Format is projects/{project}/topics/{topic}.
  • page_size (::Integer) — Maximum number of snapshot names to return.
  • page_token (::String) — The value returned by the last ListTopicSnapshotsResponse; indicates that this is a continuation of a prior ListTopicSnapshots call, and that the system should return the next page of data.
Yields
  • (response, operation) — Access the result along with the RPC operation
Yield Parameters
Returns
Raises
  • (::Google::Cloud::Error) — if the RPC is aborted.
Example

Basic example

require "google/cloud/pubsub/v1"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::PubSub::V1::ListTopicSnapshotsRequest.new

# Call the list_topic_snapshots method.
result = client.list_topic_snapshots request

# The returned object is of type Google::Cloud::PubSub::V1::ListTopicSnapshotsResponse.
p result

#list_topic_subscriptions

def list_topic_subscriptions(request, options = nil) -> ::Google::Cloud::PubSub::V1::ListTopicSubscriptionsResponse
def list_topic_subscriptions(topic: nil, page_size: nil, page_token: nil) -> ::Google::Cloud::PubSub::V1::ListTopicSubscriptionsResponse

Lists the names of the attached subscriptions on this topic.

Overloads 
def list_topic_subscriptions(request, options = nil) -> ::Google::Cloud::PubSub::V1::ListTopicSubscriptionsResponse
Pass arguments to list_topic_subscriptions via a request object, either of type ListTopicSubscriptionsRequest or an equivalent Hash.
Parameters
  • request (::Google::Cloud::PubSub::V1::ListTopicSubscriptionsRequest, ::Hash) — A request object representing the call parameters. Required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash.
  • options (::Gapic::CallOptions, ::Hash) — Overrides the default settings for this call, e.g, timeout, retries, etc. Optional. 
def list_topic_subscriptions(topic: nil, page_size: nil, page_token: nil) -> ::Google::Cloud::PubSub::V1::ListTopicSubscriptionsResponse
Pass arguments to list_topic_subscriptions via keyword arguments. Note that at least one keyword argument is required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash as a request object (see above).
Parameters
  • topic (::String) — Required. The name of the topic that subscriptions are attached to. Format is projects/{project}/topics/{topic}.
  • page_size (::Integer) — Maximum number of subscription names to return.
  • page_token (::String) — The value returned by the last ListTopicSubscriptionsResponse; indicates that this is a continuation of a prior ListTopicSubscriptions call, and that the system should return the next page of data.
Yields
  • (response, operation) — Access the result along with the RPC operation
Yield Parameters
Returns
Raises
  • (::Google::Cloud::Error) — if the RPC is aborted.
Example

Basic example

require "google/cloud/pubsub/v1"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::PubSub::V1::ListTopicSubscriptionsRequest.new

# Call the list_topic_subscriptions method.
result = client.list_topic_subscriptions request

# The returned object is of type Google::Cloud::PubSub::V1::ListTopicSubscriptionsResponse.
p result

#list_topics

def list_topics(request, options = nil) -> ::Gapic::PagedEnumerable<::Google::Cloud::PubSub::V1::Topic>
def list_topics(project: nil, page_size: nil, page_token: nil) -> ::Gapic::PagedEnumerable<::Google::Cloud::PubSub::V1::Topic>

Lists matching topics.

Overloads 
def list_topics(request, options = nil) -> ::Gapic::PagedEnumerable<::Google::Cloud::PubSub::V1::Topic>
Pass arguments to list_topics via a request object, either of type ListTopicsRequest or an equivalent Hash.
Parameters
  • request (::Google::Cloud::PubSub::V1::ListTopicsRequest, ::Hash) — A request object representing the call parameters. Required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash.
  • options (::Gapic::CallOptions, ::Hash) — Overrides the default settings for this call, e.g, timeout, retries, etc. Optional. 
def list_topics(project: nil, page_size: nil, page_token: nil) -> ::Gapic::PagedEnumerable<::Google::Cloud::PubSub::V1::Topic>
Pass arguments to list_topics via keyword arguments. Note that at least one keyword argument is required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash as a request object (see above).
Parameters
  • project (::String) — Required. The name of the project in which to list topics. Format is projects/{project-id}.
  • page_size (::Integer) — Maximum number of topics to return.
  • page_token (::String) — The value returned by the last ListTopicsResponse; indicates that this is a continuation of a prior ListTopics call, and that the system should return the next page of data.
Yields
  • (response, operation) — Access the result along with the RPC operation
Yield Parameters
Returns
Raises
  • (::Google::Cloud::Error) — if the RPC is aborted.
Example

Basic example

require "google/cloud/pubsub/v1"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::PubSub::V1::ListTopicsRequest.new

# Call the list_topics method.
result = client.list_topics request

# The returned object is of type Gapic::PagedEnumerable. You can iterate
# over elements, and API calls will be issued to fetch pages as needed.
result.each do |item|
  # Each element is of type ::Google::Cloud::PubSub::V1::Topic.
  p item
end

#publish

def publish(request, options = nil) -> ::Google::Cloud::PubSub::V1::PublishResponse
def publish(topic: nil, messages: nil) -> ::Google::Cloud::PubSub::V1::PublishResponse

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

Overloads 
def publish(request, options = nil) -> ::Google::Cloud::PubSub::V1::PublishResponse
Pass arguments to publish via a request object, either of type Google::Cloud::PubSub::V1::PublishRequest or an equivalent Hash.
Parameters
  • request (::Google::Cloud::PubSub::V1::PublishRequest, ::Hash) — A request object representing the call parameters. Required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash.
  • options (::Gapic::CallOptions, ::Hash) — Overrides the default settings for this call, e.g, timeout, retries, etc. Optional. 
def publish(topic: nil, messages: nil) -> ::Google::Cloud::PubSub::V1::PublishResponse
Pass arguments to publish via keyword arguments. Note that at least one keyword argument is required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash as a request object (see above).
Parameters
  • topic (::String) — Required. The messages in the request will be published on this topic. Format is projects/{project}/topics/{topic}.
  • messages (::Array<::Google::Cloud::PubSub::V1::PubsubMessage, ::Hash>) — Required. The messages to publish.
Yields
  • (response, operation) — Access the result along with the RPC operation
Yield Parameters
Returns
Raises
  • (::Google::Cloud::Error) — if the RPC is aborted.
Example

Basic example

require "google/cloud/pubsub/v1"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::PubSub::V1::PublishRequest.new

# Call the publish method.
result = client.publish request

# The returned object is of type Google::Cloud::PubSub::V1::PublishResponse.
p result

#update_topic

def update_topic(request, options = nil) -> ::Google::Cloud::PubSub::V1::Topic
def update_topic(topic: nil, update_mask: nil) -> ::Google::Cloud::PubSub::V1::Topic

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

Overloads 
def update_topic(request, options = nil) -> ::Google::Cloud::PubSub::V1::Topic
Pass arguments to update_topic via a request object, either of type UpdateTopicRequest or an equivalent Hash.
Parameters
  • request (::Google::Cloud::PubSub::V1::UpdateTopicRequest, ::Hash) — A request object representing the call parameters. Required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash.
  • options (::Gapic::CallOptions, ::Hash) — Overrides the default settings for this call, e.g, timeout, retries, etc. Optional. 
def update_topic(topic: nil, update_mask: nil) -> ::Google::Cloud::PubSub::V1::Topic
Pass arguments to update_topic via keyword arguments. Note that at least one keyword argument is required. To specify no parameters, or to keep all the default parameter values, pass an empty Hash as a request object (see above).
Parameters
  • topic (::Google::Cloud::PubSub::V1::Topic, ::Hash) — Required. The updated topic object.
  • update_mask (::Google::Protobuf::FieldMask, ::Hash) — Required. Indicates which fields in the provided topic to update. Must be specified and non-empty. Note that if update_mask contains "message_storage_policy" but the message_storage_policy is not set in the topic provided above, then the updated value is determined by the policy configured at the project or organization level.
Yields
  • (response, operation) — Access the result along with the RPC operation
Yield Parameters
Returns
Raises
  • (::Google::Cloud::Error) — if the RPC is aborted.
Example

Basic example

require "google/cloud/pubsub/v1"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::PubSub::V1::Publisher::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::PubSub::V1::UpdateTopicRequest.new

# Call the update_topic method.
result = client.update_topic request

# The returned object is of type Google::Cloud::PubSub::V1::Topic.
p result