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Package cloudtasks is an auto-generated package for the Cloud Tasks API.
Manages the execution of large numbers of distributed requests.
Use of Context
The ctx passed to NewClient is used for authentication requests and for creating the underlying connection, but is not used for subsequent calls. Individual methods on the client use the ctx given to them.
To close the open connection, use the Close() method.
For information about setting deadlines, reusing contexts, and more please visit https://pkg.go.dev/cloud.google.com/go.
Functions
func DefaultAuthScopes
func DefaultAuthScopes() []string
DefaultAuthScopes reports the default set of authentication scopes to use with this package.
CallOptions
type CallOptions struct {
ListQueues []gax.CallOption
GetQueue []gax.CallOption
CreateQueue []gax.CallOption
UpdateQueue []gax.CallOption
DeleteQueue []gax.CallOption
PurgeQueue []gax.CallOption
PauseQueue []gax.CallOption
ResumeQueue []gax.CallOption
GetIamPolicy []gax.CallOption
SetIamPolicy []gax.CallOption
TestIamPermissions []gax.CallOption
ListTasks []gax.CallOption
GetTask []gax.CallOption
CreateTask []gax.CallOption
DeleteTask []gax.CallOption
RunTask []gax.CallOption
}
CallOptions contains the retry settings for each method of Client.
Client
type Client struct {
// The call options for this service.
CallOptions *CallOptions
// contains filtered or unexported fields
}
Client is a client for interacting with Cloud Tasks API. Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
Cloud Tasks allows developers to manage the execution of background work in their applications.
func NewClient
NewClient creates a new cloud tasks client based on gRPC. The returned client must be Closed when it is done being used to clean up its underlying connections.
Cloud Tasks allows developers to manage the execution of background work in their applications.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
// TODO: Use client.
_ = c
}
func (*Client) Close
Close closes the connection to the API service. The user should invoke this when the client is no longer required.
func (*Client) Connection
func (c *Client) Connection() *grpc.ClientConn
Connection returns a connection to the API service.
Deprecated.
func (*Client) CreateQueue
func (c *Client) CreateQueue(ctx context.Context, req *taskspb.CreateQueueRequest, opts ...gax.CallOption) (*taskspb.Queue, error)
CreateQueue creates a queue.
Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.
WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml (at https://cloud.google.com/tasks/docs/queue-yaml) before using this method.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.CreateQueueRequest{
// TODO: Fill request struct fields.
}
resp, err := c.CreateQueue(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) CreateTask
func (c *Client) CreateTask(ctx context.Context, req *taskspb.CreateTaskRequest, opts ...gax.CallOption) (*taskspb.Task, error)
CreateTask creates a task and adds it to a queue.
Tasks cannot be updated after creation; there is no UpdateTask command.
The maximum task size is 100KB.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.CreateTaskRequest{
// TODO: Fill request struct fields.
}
resp, err := c.CreateTask(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) DeleteQueue
func (c *Client) DeleteQueue(ctx context.Context, req *taskspb.DeleteQueueRequest, opts ...gax.CallOption) error
DeleteQueue deletes a queue.
This command will delete the queue even if it has tasks in it.
Note: If you delete a queue, a queue with the same name can’t be created for 7 days.
WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml (at https://cloud.google.com/tasks/docs/queue-yaml) before using this method.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.DeleteQueueRequest{
// TODO: Fill request struct fields.
}
err = c.DeleteQueue(ctx, req)
if err != nil {
// TODO: Handle error.
}
}
func (*Client) DeleteTask
func (c *Client) DeleteTask(ctx context.Context, req *taskspb.DeleteTaskRequest, opts ...gax.CallOption) error
DeleteTask deletes a task.
A task can be deleted if it is scheduled or dispatched. A task cannot be deleted if it has executed successfully or permanently failed.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.DeleteTaskRequest{
// TODO: Fill request struct fields.
}
err = c.DeleteTask(ctx, req)
if err != nil {
// TODO: Handle error.
}
}
func (*Client) GetIamPolicy
func (c *Client) GetIamPolicy(ctx context.Context, req *iampb.GetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error)
GetIamPolicy gets the access control policy for a Queue. Returns an empty policy if the resource exists and does not have a policy set.
Authorization requires the following Google IAM (at https://cloud.google.com/iam) permission on the specified resource parent:
cloudtasks.queues.getIamPolicy
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
iampb "google.golang.org/genproto/googleapis/iam/v1"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &iampb.GetIamPolicyRequest{
// TODO: Fill request struct fields.
}
resp, err := c.GetIamPolicy(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) GetQueue
func (c *Client) GetQueue(ctx context.Context, req *taskspb.GetQueueRequest, opts ...gax.CallOption) (*taskspb.Queue, error)
GetQueue gets a queue.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.GetQueueRequest{
// TODO: Fill request struct fields.
}
resp, err := c.GetQueue(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) GetTask
func (c *Client) GetTask(ctx context.Context, req *taskspb.GetTaskRequest, opts ...gax.CallOption) (*taskspb.Task, error)
GetTask gets a task.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.GetTaskRequest{
// TODO: Fill request struct fields.
}
resp, err := c.GetTask(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) ListQueues
func (c *Client) ListQueues(ctx context.Context, req *taskspb.ListQueuesRequest, opts ...gax.CallOption) *QueueIterator
ListQueues lists queues.
Queues are returned in lexicographical order.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
"google.golang.org/api/iterator"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.ListQueuesRequest{
// TODO: Fill request struct fields.
}
it := c.ListQueues(ctx, req)
for {
resp, err := it.Next()
if err == iterator.Done {
break
}
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
}
func (*Client) ListTasks
func (c *Client) ListTasks(ctx context.Context, req *taskspb.ListTasksRequest, opts ...gax.CallOption) *TaskIterator
ListTasks lists the tasks in a queue.
By default, only the BASIC view is retrieved due to performance considerations; response_view controls the subset of information which is returned.
The tasks may be returned in any order. The ordering may change at any time.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
"google.golang.org/api/iterator"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.ListTasksRequest{
// TODO: Fill request struct fields.
}
it := c.ListTasks(ctx, req)
for {
resp, err := it.Next()
if err == iterator.Done {
break
}
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
}
func (*Client) PauseQueue
func (c *Client) PauseQueue(ctx context.Context, req *taskspb.PauseQueueRequest, opts ...gax.CallOption) (*taskspb.Queue, error)
PauseQueue pauses the queue.
If a queue is paused then the system will stop dispatching tasks until the queue is resumed via ResumeQueue. Tasks can still be added when the queue is paused. A queue is paused if its state is PAUSED.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.PauseQueueRequest{
// TODO: Fill request struct fields.
}
resp, err := c.PauseQueue(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) PurgeQueue
func (c *Client) PurgeQueue(ctx context.Context, req *taskspb.PurgeQueueRequest, opts ...gax.CallOption) (*taskspb.Queue, error)
PurgeQueue purges a queue by deleting all of its tasks.
All tasks created before this method is called are permanently deleted.
Purge operations can take up to one minute to take effect. Tasks might be dispatched before the purge takes effect. A purge is irreversible.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.PurgeQueueRequest{
// TODO: Fill request struct fields.
}
resp, err := c.PurgeQueue(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) ResumeQueue
func (c *Client) ResumeQueue(ctx context.Context, req *taskspb.ResumeQueueRequest, opts ...gax.CallOption) (*taskspb.Queue, error)
ResumeQueue resume a queue.
This method resumes a queue after it has been PAUSED or DISABLED. The state of a queue is stored in the queue’s state; after calling this method it will be set to RUNNING.
WARNING: Resuming many high-QPS queues at the same time can lead to target overloading. If you are resuming high-QPS queues, follow the 500/50/5 pattern described in Managing Cloud Tasks Scaling Risks (at https://cloud.google.com/tasks/docs/manage-cloud-task-scaling).
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.ResumeQueueRequest{
// TODO: Fill request struct fields.
}
resp, err := c.ResumeQueue(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) RunTask
func (c *Client) RunTask(ctx context.Context, req *taskspb.RunTaskRequest, opts ...gax.CallOption) (*taskspb.Task, error)
RunTask forces a task to run now.
When this method is called, Cloud Tasks will dispatch the task, even if the task is already running, the queue has reached its RateLimits or is PAUSED.
This command is meant to be used for manual debugging. For example, RunTask can be used to retry a failed task after a fix has been made or to manually force a task to be dispatched now.
The dispatched task is returned. That is, the task that is returned contains the status after the task is dispatched but before the task is received by its target.
If Cloud Tasks receives a successful response from the task’s target, then the task will be deleted; otherwise the task’s schedule_time will be reset to the time that RunTask was called plus the retry delay specified in the queue’s RetryConfig.
RunTask returns NOT_FOUND when it is called on a task that has already succeeded or permanently failed.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.RunTaskRequest{
// TODO: Fill request struct fields.
}
resp, err := c.RunTask(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) SetIamPolicy
func (c *Client) SetIamPolicy(ctx context.Context, req *iampb.SetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error)
SetIamPolicy sets the access control policy for a Queue. Replaces any existing policy.
Note: The Cloud Console does not check queue-level IAM permissions yet. Project-level permissions are required to use the Cloud Console.
Authorization requires the following Google IAM (at https://cloud.google.com/iam) permission on the specified resource parent:
cloudtasks.queues.setIamPolicy
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
iampb "google.golang.org/genproto/googleapis/iam/v1"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &iampb.SetIamPolicyRequest{
// TODO: Fill request struct fields.
}
resp, err := c.SetIamPolicy(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) TestIamPermissions
func (c *Client) TestIamPermissions(ctx context.Context, req *iampb.TestIamPermissionsRequest, opts ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error)
TestIamPermissions returns permissions that a caller has on a Queue. 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.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
iampb "google.golang.org/genproto/googleapis/iam/v1"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &iampb.TestIamPermissionsRequest{
// TODO: Fill request struct fields.
}
resp, err := c.TestIamPermissions(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) UpdateQueue
func (c *Client) UpdateQueue(ctx context.Context, req *taskspb.UpdateQueueRequest, opts ...gax.CallOption) (*taskspb.Queue, error)
UpdateQueue updates a queue.
This method creates the queue if it does not exist and updates the queue if it does exist.
Queues created with this method allow tasks to live for a maximum of 31 days. After a task is 31 days old, the task will be deleted regardless of whether it was dispatched or not.
WARNING: Using this method may have unintended side effects if you are using an App Engine queue.yaml or queue.xml file to manage your queues. Read Overview of Queue Management and queue.yaml (at https://cloud.google.com/tasks/docs/queue-yaml) before using this method.
Example
package main
import (
"context"
cloudtasks "cloud.google.com/go/cloudtasks/apiv2"
taskspb "google.golang.org/genproto/googleapis/cloud/tasks/v2"
)
func main() {
ctx := context.Background()
c, err := cloudtasks.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &taskspb.UpdateQueueRequest{
// TODO: Fill request struct fields.
}
resp, err := c.UpdateQueue(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
QueueIterator
type QueueIterator struct {
// Response is the raw response for the current page.
// It must be cast to the RPC response type.
// Calling Next() or InternalFetch() updates this value.
Response interface{}
// 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 []*taskspb.Queue, nextPageToken string, err error)
// contains filtered or unexported fields
}
QueueIterator manages a stream of *taskspb.Queue.
func (*QueueIterator) Next
func (it *QueueIterator) Next() (*taskspb.Queue, 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 (*QueueIterator) PageInfo
func (it *QueueIterator) PageInfo() *iterator.PageInfo
PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
TaskIterator
type TaskIterator struct {
// Response is the raw response for the current page.
// It must be cast to the RPC response type.
// Calling Next() or InternalFetch() updates this value.
Response interface{}
// 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 []*taskspb.Task, nextPageToken string, err error)
// contains filtered or unexported fields
}
TaskIterator manages a stream of *taskspb.Task.
func (*TaskIterator) Next
func (it *TaskIterator) Next() (*taskspb.Task, 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 (*TaskIterator) PageInfo
func (it *TaskIterator) PageInfo() *iterator.PageInfo
PageInfo supports pagination. See the google.golang.org/api/iterator package for details.