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api_op_GetActivityTask.go
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api_op_GetActivityTask.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package sfn
import (
"context"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Used by workers to retrieve a task (with the specified activity ARN) which has
// been scheduled for execution by a running state machine. This initiates a long
// poll, where the service holds the HTTP connection open and responds as soon as a
// task becomes available (i.e. an execution of a task of this type is needed.) The
// maximum time the service holds on to the request before responding is 60
// seconds. If no task is available within 60 seconds, the poll returns a taskToken
// with a null string. Workers should set their client side socket timeout to at
// least 65 seconds (5 seconds higher than the maximum time the service may hold
// the poll request). Polling with GetActivityTask can cause latency in some
// implementations. See Avoid Latency When Polling for Activity Tasks
// (https://docs.aws.amazon.com/step-functions/latest/dg/bp-activity-pollers.html)
// in the Step Functions Developer Guide.
func (c *Client) GetActivityTask(ctx context.Context, params *GetActivityTaskInput, optFns ...func(*Options)) (*GetActivityTaskOutput, error) {
if params == nil {
params = &GetActivityTaskInput{}
}
result, metadata, err := c.invokeOperation(ctx, "GetActivityTask", params, optFns, c.addOperationGetActivityTaskMiddlewares)
if err != nil {
return nil, err
}
out := result.(*GetActivityTaskOutput)
out.ResultMetadata = metadata
return out, nil
}
type GetActivityTaskInput struct {
// The Amazon Resource Name (ARN) of the activity to retrieve tasks from (assigned
// when you create the task using CreateActivity.)
//
// This member is required.
ActivityArn *string
// You can provide an arbitrary name in order to identify the worker that the task
// is assigned to. This name is used when it is logged in the execution history.
WorkerName *string
noSmithyDocumentSerde
}
type GetActivityTaskOutput struct {
// The string that contains the JSON input data for the task. Length constraints
// apply to the payload size, and are expressed as bytes in UTF-8 encoding.
Input *string
// A token that identifies the scheduled task. This token must be copied and
// included in subsequent calls to SendTaskHeartbeat, SendTaskSuccess or
// SendTaskFailure in order to report the progress or completion of the task.
TaskToken *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationGetActivityTaskMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsjson10_serializeOpGetActivityTask{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson10_deserializeOpGetActivityTask{}, middleware.After)
if err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
return err
}
if err = addRetryMiddlewares(stack, options); err != nil {
return err
}
if err = addHTTPSignerV4Middleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
return err
}
if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addOpGetActivityTaskValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetActivityTask(options.Region), middleware.Before); err != nil {
return err
}
if err = addRequestIDRetrieverMiddleware(stack); err != nil {
return err
}
if err = addResponseErrorMiddleware(stack); err != nil {
return err
}
if err = addRequestResponseLogging(stack, options); err != nil {
return err
}
return nil
}
func newServiceMetadataMiddleware_opGetActivityTask(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "states",
OperationName: "GetActivityTask",
}
}