pubsub

package
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 Go to latest Published: Mar 10, 2017 License: Apache-2.0 Imports: 13 Imported by: 0

README

Auto-generated pubsub v1 clients

This package includes auto-generated clients for the pubsub v1 API.

Use the handwritten client (in the parent directory, cloud.google.com/go/pubsub) in preference to this.

This code is EXPERIMENTAL and subject to CHANGE AT ANY TIME.

Documentation

Overview

Package pubsub is an experimental, auto-generated package for the pubsub API.

Provides reliable, many-to-many, asynchronous messaging between applications.

Use the client at cloud.google.com/go/pubsub in preference to this.

Index

Examples

Constants

This section is empty.

Variables

This section is empty.

Functions

func PublisherProjectPath 

func PublisherProjectPath(project string) string

PublisherProjectPath returns the path for the project resource.

func PublisherTopicPath 

func PublisherTopicPath(project, topic string) string

PublisherTopicPath returns the path for the topic resource.

func SubscriberProjectPath 

func SubscriberProjectPath(project string) string

SubscriberProjectPath returns the path for the project resource.

func SubscriberSubscriptionPath 

func SubscriberSubscriptionPath(project, subscription string) string

SubscriberSubscriptionPath returns the path for the subscription resource.

func SubscriberTopicPath 

func SubscriberTopicPath(project, topic string) string

SubscriberTopicPath returns the path for the topic resource.

Types

type PublisherCallOptions 

type PublisherCallOptions struct {
	CreateTopic            []gax.CallOption
	Publish                []gax.CallOption
	GetTopic               []gax.CallOption
	ListTopics             []gax.CallOption
	ListTopicSubscriptions []gax.CallOption
	DeleteTopic            []gax.CallOption
}

PublisherCallOptions contains the retry settings for each method of PublisherClient.

type PublisherClient 

type PublisherClient struct {

	// The call options for this service.
	CallOptions *PublisherCallOptions
	// contains filtered or unexported fields
}

PublisherClient is a client for interacting with Google Cloud Pub/Sub API.

func NewPublisherClient 

func NewPublisherClient(ctx context.Context, opts ...option.ClientOption) (*PublisherClient, error)

NewPublisherClient creates a new publisher client.

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

Example 
ctx := context.Background()
c, err := pubsub.NewPublisherClient(ctx)
if err != nil {
	// TODO: Handle error.
}
// TODO: Use client.
_ = c

Output:

func (*PublisherClient) Close 

func (c *PublisherClient) Close() error

Close closes the connection to the API service. The user should invoke this when the client is no longer required.

func (*PublisherClient) Connection 

func (c *PublisherClient) Connection() *grpc.ClientConn

Connection returns the client's connection to the API service.

func (*PublisherClient) CreateTopic 

func (c *PublisherClient) CreateTopic(ctx context.Context, req *pubsubpb.Topic) (*pubsubpb.Topic, error)

CreateTopic creates the given topic with the given name.

Example 
ctx := context.Background()
c, err := pubsub.NewPublisherClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.Topic{
	// TODO: Fill request struct fields.
}
resp, err := c.CreateTopic(ctx, req)
if err != nil {
	// TODO: Handle error.
}
// TODO: Use resp.
_ = resp

Output:

func (*PublisherClient) DeleteTopic 

func (c *PublisherClient) DeleteTopic(ctx context.Context, req *pubsubpb.DeleteTopicRequest) error

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_`.

Example 
ctx := context.Background()
c, err := pubsub.NewPublisherClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.DeleteTopicRequest{
	// TODO: Fill request struct fields.
}
err = c.DeleteTopic(ctx, req)
if err != nil {
	// TODO: Handle error.
}

Output:

func (*PublisherClient) GetTopic 

func (c *PublisherClient) GetTopic(ctx context.Context, req *pubsubpb.GetTopicRequest) (*pubsubpb.Topic, error)

GetTopic gets the configuration of a topic.

Example 
ctx := context.Background()
c, err := pubsub.NewPublisherClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.GetTopicRequest{
	// TODO: Fill request struct fields.
}
resp, err := c.GetTopic(ctx, req)
if err != nil {
	// TODO: Handle error.
}
// TODO: Use resp.
_ = resp

Output:

func (*PublisherClient) ListTopicSubscriptions 

func (c *PublisherClient) ListTopicSubscriptions(ctx context.Context, req *pubsubpb.ListTopicSubscriptionsRequest) *StringIterator

ListTopicSubscriptions lists the name of the subscriptions for this topic.

Example 
ctx := context.Background()
c, err := pubsub.NewPublisherClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.ListTopicSubscriptionsRequest{
	// TODO: Fill request struct fields.
}
it := c.ListTopicSubscriptions(ctx, req)
for {
	resp, err := it.Next()
	if err != nil {
		// TODO: Handle error.
		break
	}
	// TODO: Use resp.
	_ = resp
}

Output:

func (*PublisherClient) ListTopics 

func (c *PublisherClient) ListTopics(ctx context.Context, req *pubsubpb.ListTopicsRequest) *TopicIterator

ListTopics lists matching topics.

Example 
ctx := context.Background()
c, err := pubsub.NewPublisherClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.ListTopicsRequest{
	// TODO: Fill request struct fields.
}
it := c.ListTopics(ctx, req)
for {
	resp, err := it.Next()
	if err != nil {
		// TODO: Handle error.
		break
	}
	// TODO: Use resp.
	_ = resp
}

Output:

func (*PublisherClient) Publish 

func (c *PublisherClient) Publish(ctx context.Context, req *pubsubpb.PublishRequest) (*pubsubpb.PublishResponse, error)

Publish adds one or more messages to the topic. Returns `NOT_FOUND` if the topic does not exist. The message payload must not be empty; it must contain 

either a non-empty data field, or at least one attribute.
Example 
ctx := context.Background()
c, err := pubsub.NewPublisherClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.PublishRequest{
	// TODO: Fill request struct fields.
}
resp, err := c.Publish(ctx, req)
if err != nil {
	// TODO: Handle error.
}
// TODO: Use resp.
_ = resp

Output:

func (*PublisherClient) SetGoogleClientInfo 

func (c *PublisherClient) SetGoogleClientInfo(keyval ...string)

SetGoogleClientInfo sets the name and version of the application in the `x-goog-api-client` header passed on each request. Intended for use by Google-written clients.

func (*PublisherClient) SubscriptionIAM added in v0.4.0 

func (c *PublisherClient) SubscriptionIAM(subscription *pubsubpb.Subscription) *iam.Handle
Example 
ctx := context.Background()
c, err := pubsub.NewPublisherClient(ctx)
if err != nil {
	// TODO: Handle error.
}

subscription := &pubsubpb.Subscription{}
h := c.SubscriptionIAM(subscription)
policy, err := h.Policy(ctx)
if err != nil {
	// TODO: Handle error.
}
//TODO: Use the IAM policy
_ = policy

Output:

func (*PublisherClient) TopicIAM added in v0.4.0 

func (c *PublisherClient) TopicIAM(topic *pubsubpb.Topic) *iam.Handle
Example 
ctx := context.Background()
c, err := pubsub.NewPublisherClient(ctx)
if err != nil {
	// TODO: Handle error.
}

topic := &pubsubpb.Topic{}
h := c.TopicIAM(topic)
policy, err := h.Policy(ctx)
if err != nil {
	// TODO: Handle error.
}
//TODO: Use the IAM policy
_ = policy

Output:

type StringIterator 

type StringIterator struct {

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []string, nextPageToken string, err error)
	// contains filtered or unexported fields
}

StringIterator manages a stream of string.

func (*StringIterator) Next 

func (it *StringIterator) Next() (string, error)

Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.

func (*StringIterator) PageInfo added in v0.3.0 

func (it *StringIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.

type SubscriberCallOptions 

type SubscriberCallOptions struct {
	CreateSubscription []gax.CallOption
	GetSubscription    []gax.CallOption
	ListSubscriptions  []gax.CallOption
	DeleteSubscription []gax.CallOption
	ModifyAckDeadline  []gax.CallOption
	Acknowledge        []gax.CallOption
	Pull               []gax.CallOption
	StreamingPull      []gax.CallOption
	ModifyPushConfig   []gax.CallOption
}

SubscriberCallOptions contains the retry settings for each method of SubscriberClient.

type SubscriberClient 

type SubscriberClient struct {

	// The call options for this service.
	CallOptions *SubscriberCallOptions
	// contains filtered or unexported fields
}

SubscriberClient is a client for interacting with Google Cloud Pub/Sub API.

func NewSubscriberClient 

func NewSubscriberClient(ctx context.Context, opts ...option.ClientOption) (*SubscriberClient, error)

NewSubscriberClient creates a new subscriber client.

The service that an application uses to manipulate subscriptions and to consume messages from a subscription via the `Pull` method.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}
// TODO: Use client.
_ = c

Output:

func (*SubscriberClient) Acknowledge 

func (c *SubscriberClient) Acknowledge(ctx context.Context, req *pubsubpb.AcknowledgeRequest) error

Acknowledge acknowledges the messages associated with the `ack_ids` in the `AcknowledgeRequest`. The Pub/Sub system can remove the relevant messages from the subscription.

Acknowledging a message whose ack deadline has expired may succeed, but such a message may be redelivered later. Acknowledging a message more than once will not result in an error.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.AcknowledgeRequest{
	// TODO: Fill request struct fields.
}
err = c.Acknowledge(ctx, req)
if err != nil {
	// TODO: Handle error.
}

Output:

func (*SubscriberClient) Close 

func (c *SubscriberClient) Close() error

Close closes the connection to the API service. The user should invoke this when the client is no longer required.

func (*SubscriberClient) Connection 

func (c *SubscriberClient) Connection() *grpc.ClientConn

Connection returns the client's connection to the API service.

func (*SubscriberClient) CreateSubscription 

func (c *SubscriberClient) CreateSubscription(ctx context.Context, req *pubsubpb.Subscription) (*pubsubpb.Subscription, error)

CreateSubscription creates a subscription to a given topic. If the subscription already exists, returns `ALREADY_EXISTS`. If the corresponding topic doesn't exist, returns `NOT_FOUND`.

If the name is not provided in the request, the server will assign a random name for this subscription on the same project as the topic, conforming to the [resource name format](https://cloud.google.com/pubsub/docs/overview#names). The generated name is populated in the returned Subscription object. Note that for REST API requests, you must specify a name in the request.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.Subscription{
	// TODO: Fill request struct fields.
}
resp, err := c.CreateSubscription(ctx, req)
if err != nil {
	// TODO: Handle error.
}
// TODO: Use resp.
_ = resp

Output:

func (*SubscriberClient) DeleteSubscription 

func (c *SubscriberClient) DeleteSubscription(ctx context.Context, req *pubsubpb.DeleteSubscriptionRequest) error

DeleteSubscription deletes an existing subscription. All messages retained in the subscription are immediately dropped. Calls to `Pull` after deletion will return `NOT_FOUND`. After a subscription is deleted, a new one may be created with the same name, but the new one has no association with the old subscription or its topic unless the same topic is specified.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.DeleteSubscriptionRequest{
	// TODO: Fill request struct fields.
}
err = c.DeleteSubscription(ctx, req)
if err != nil {
	// TODO: Handle error.
}

Output:

func (*SubscriberClient) GetSubscription 

func (c *SubscriberClient) GetSubscription(ctx context.Context, req *pubsubpb.GetSubscriptionRequest) (*pubsubpb.Subscription, error)

GetSubscription gets the configuration details of a subscription.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.GetSubscriptionRequest{
	// TODO: Fill request struct fields.
}
resp, err := c.GetSubscription(ctx, req)
if err != nil {
	// TODO: Handle error.
}
// TODO: Use resp.
_ = resp

Output:

func (*SubscriberClient) ListSubscriptions 

func (c *SubscriberClient) ListSubscriptions(ctx context.Context, req *pubsubpb.ListSubscriptionsRequest) *SubscriptionIterator

ListSubscriptions lists matching subscriptions.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.ListSubscriptionsRequest{
	// TODO: Fill request struct fields.
}
it := c.ListSubscriptions(ctx, req)
for {
	resp, err := it.Next()
	if err != nil {
		// TODO: Handle error.
		break
	}
	// TODO: Use resp.
	_ = resp
}

Output:

func (*SubscriberClient) ModifyAckDeadline 

func (c *SubscriberClient) ModifyAckDeadline(ctx context.Context, req *pubsubpb.ModifyAckDeadlineRequest) error

ModifyAckDeadline modifies the ack deadline for a specific message. This method is useful to indicate that more time is needed to process a message by the subscriber, or to make the message available for redelivery if the processing was interrupted. Note that this does not modify the subscription-level `ackDeadlineSeconds` used for subsequent messages.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.ModifyAckDeadlineRequest{
	// TODO: Fill request struct fields.
}
err = c.ModifyAckDeadline(ctx, req)
if err != nil {
	// TODO: Handle error.
}

Output:

func (*SubscriberClient) ModifyPushConfig 

func (c *SubscriberClient) ModifyPushConfig(ctx context.Context, req *pubsubpb.ModifyPushConfigRequest) error

ModifyPushConfig modifies the `PushConfig` for a specified subscription.

This may be used to change a push subscription to a pull one (signified by an empty `PushConfig`) or vice versa, or change the endpoint URL and other attributes of a push subscription. Messages will accumulate for delivery continuously through the call regardless of changes to the `PushConfig`.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.ModifyPushConfigRequest{
	// TODO: Fill request struct fields.
}
err = c.ModifyPushConfig(ctx, req)
if err != nil {
	// TODO: Handle error.
}

Output:

func (*SubscriberClient) Pull 

func (c *SubscriberClient) Pull(ctx context.Context, req *pubsubpb.PullRequest) (*pubsubpb.PullResponse, error)

Pull pulls messages from the server. Returns an empty list if there are no messages available in the backlog. The server may return `UNAVAILABLE` if there are too many concurrent pull requests pending for the given subscription.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

req := &pubsubpb.PullRequest{
	// TODO: Fill request struct fields.
}
resp, err := c.Pull(ctx, req)
if err != nil {
	// TODO: Handle error.
}
// TODO: Use resp.
_ = resp

Output:

func (*SubscriberClient) SetGoogleClientInfo 

func (c *SubscriberClient) SetGoogleClientInfo(keyval ...string)

SetGoogleClientInfo sets the name and version of the application in the `x-goog-api-client` header passed on each request. Intended for use by Google-written clients.

func (*SubscriberClient) StreamingPull added in v0.7.0 

func (c *SubscriberClient) StreamingPull(ctx context.Context) (pubsubpb.Subscriber_StreamingPullClient, error)

StreamingPull (EXPERIMENTAL) StreamingPull is an experimental feature. This RPC will respond with UNIMPLEMENTED errors unless you have been invited to test this feature. Contact cloud-pubsub@google.com with any questions.

Establishes a stream with the server, which sends messages down to the client. The client streams acknowledgements and ack deadline modifications back to the server. The server will close the stream and return the status on any error. The server may close the stream with status `OK` to reassign server-side resources, in which case, the client should re-establish the stream. `UNAVAILABLE` may also be returned in the case of a transient error (e.g., a server restart). These should also be retried by the client. Flow control can be achieved by configuring the underlying RPC channel.

Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}
stream, err := c.StreamingPull(ctx)
if err != nil {
	// TODO: Handle error.
}
go func() {
	reqs := []*pubsubpb.StreamingPullRequest{
		// TODO: Create requests.
	}
	for _, req := range reqs {
		if err := stream.Send(req); err != nil {
			// TODO: Handle error.
		}
	}
	stream.CloseSend()
}()
for {
	resp, err := stream.Recv()
	if err == io.EOF {
		break
	}
	if err != nil {
		// TODO: handle error.
	}
	// TODO: Use resp.
	_ = resp
}

Output:

func (*SubscriberClient) SubscriptionIAM added in v0.4.0 

func (c *SubscriberClient) SubscriptionIAM(subscription *pubsubpb.Subscription) *iam.Handle
Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

subscription := &pubsubpb.Subscription{}
h := c.SubscriptionIAM(subscription)
policy, err := h.Policy(ctx)
if err != nil {
	// TODO: Handle error.
}
//TODO: Use the IAM policy
_ = policy

Output:

func (*SubscriberClient) TopicIAM added in v0.4.0 

func (c *SubscriberClient) TopicIAM(topic *pubsubpb.Topic) *iam.Handle
Example 
ctx := context.Background()
c, err := pubsub.NewSubscriberClient(ctx)
if err != nil {
	// TODO: Handle error.
}

topic := &pubsubpb.Topic{}
h := c.TopicIAM(topic)
policy, err := h.Policy(ctx)
if err != nil {
	// TODO: Handle error.
}
//TODO: Use the IAM policy
_ = policy

Output:

type SubscriptionIterator 

type SubscriptionIterator struct {

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*pubsubpb.Subscription, nextPageToken string, err error)
	// contains filtered or unexported fields
}

SubscriptionIterator manages a stream of *pubsubpb.Subscription.

func (*SubscriptionIterator) Next 

func (it *SubscriptionIterator) Next() (*pubsubpb.Subscription, error)

Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.

func (*SubscriptionIterator) PageInfo added in v0.3.0 

func (it *SubscriptionIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.

type TopicIterator 

type TopicIterator struct {

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*pubsubpb.Topic, nextPageToken string, err error)
	// contains filtered or unexported fields
}

TopicIterator manages a stream of *pubsubpb.Topic.

func (*TopicIterator) Next 

func (it *TopicIterator) Next() (*pubsubpb.Topic, error)

Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.

func (*TopicIterator) PageInfo added in v0.3.0 

func (it *TopicIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.

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