The #X Amz Target=SimpleWorkflowService.RespondDecisionTaskCompleted API from Amazon Simple Workflow Service — 1 operation(s) for #x amz target=simpleworkflowservice.responddecisiontaskcompleted.
openapi: 3.0.0
info:
version: '2012-01-25'
x-release: v4
title: 'Amazon Simple Workflow Service #X Amz Target=SimpleWorkflowService.CountClosedWorkflowExecutions #X Amz Target=SimpleWorkflowService.CountClosedWorkflowExecutions #X Amz Target=SimpleWorkflowService.RespondDecisionTaskCompleted API'
description: <fullname>Amazon Simple Workflow Service</fullname> <p>The Amazon Simple Workflow Service (Amazon SWF) makes it easy to build applications that use Amazon's cloud to coordinate work across distributed components. In Amazon SWF, a <i>task</i> represents a logical unit of work that is performed by a component of your workflow. Coordinating tasks in a workflow involves managing intertask dependencies, scheduling, and concurrency in accordance with the logical flow of the application.</p> <p>Amazon SWF gives you full control over implementing tasks and coordinating them without worrying about underlying complexities such as tracking their progress and maintaining their state.</p> <p>This documentation serves as reference only. For a broader overview of the Amazon SWF programming model, see the <i> <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/">Amazon SWF Developer Guide</a> </i>.</p>
x-logo:
url: https://twitter.com/awscloud/profile_image?size=original
backgroundColor: '#FFFFFF'
termsOfService: https://aws.amazon.com/service-terms/
contact:
name: Mike Ralphson
email: mike.ralphson@gmail.com
url: https://github.com/mermade/aws2openapi
x-twitter: PermittedSoc
license:
name: Apache 2.0 License
url: http://www.apache.org/licenses/
x-providerName: amazonaws.com
x-serviceName: swf
x-origin:
- contentType: application/json
url: https://raw.githubusercontent.com/aws/aws-sdk-js/master/apis/swf-2012-01-25.normal.json
converter:
url: https://github.com/mermade/aws2openapi
version: 1.0.0
x-apisguru-driver: external
x-apiClientRegistration:
url: https://portal.aws.amazon.com/gp/aws/developer/registration/index.html?nc2=h_ct
x-apisguru-categories:
- cloud
x-preferred: true
servers:
- url: http://swf.{region}.amazonaws.com
variables:
region:
description: The AWS region
enum:
- us-east-1
- us-east-2
- us-west-1
- us-west-2
- us-gov-west-1
- us-gov-east-1
- ca-central-1
- eu-north-1
- eu-west-1
- eu-west-2
- eu-west-3
- eu-central-1
- eu-south-1
- af-south-1
- ap-northeast-1
- ap-northeast-2
- ap-northeast-3
- ap-southeast-1
- ap-southeast-2
- ap-east-1
- ap-south-1
- sa-east-1
- me-south-1
default: us-east-1
description: The Amazon SWF multi-region endpoint
- url: https://swf.{region}.amazonaws.com
variables:
region:
description: The AWS region
enum:
- us-east-1
- us-east-2
- us-west-1
- us-west-2
- us-gov-west-1
- us-gov-east-1
- ca-central-1
- eu-north-1
- eu-west-1
- eu-west-2
- eu-west-3
- eu-central-1
- eu-south-1
- af-south-1
- ap-northeast-1
- ap-northeast-2
- ap-northeast-3
- ap-southeast-1
- ap-southeast-2
- ap-east-1
- ap-south-1
- sa-east-1
- me-south-1
default: us-east-1
description: The Amazon SWF multi-region endpoint
- url: http://swf.{region}.amazonaws.com.cn
variables:
region:
description: The AWS region
enum:
- cn-north-1
- cn-northwest-1
default: cn-north-1
description: The Amazon SWF endpoint for China (Beijing) and China (Ningxia)
- url: https://swf.{region}.amazonaws.com.cn
variables:
region:
description: The AWS region
enum:
- cn-north-1
- cn-northwest-1
default: cn-north-1
description: The Amazon SWF endpoint for China (Beijing) and China (Ningxia)
security:
- hmac: []
tags:
- name: '#X Amz Target=SimpleWorkflowService.RespondDecisionTaskCompleted'
paths:
/#X-Amz-Target=SimpleWorkflowService.RespondDecisionTaskCompleted:
parameters:
- $ref: '#/components/parameters/X-Amz-Content-Sha256'
- $ref: '#/components/parameters/X-Amz-Date'
- $ref: '#/components/parameters/X-Amz-Algorithm'
- $ref: '#/components/parameters/X-Amz-Credential'
- $ref: '#/components/parameters/X-Amz-Security-Token'
- $ref: '#/components/parameters/X-Amz-Signature'
- $ref: '#/components/parameters/X-Amz-SignedHeaders'
post:
operationId: RespondDecisionTaskCompleted
description: <p>Used by deciders to tell the service that the <a>DecisionTask</a> identified by the <code>taskToken</code> has successfully completed. The <code>decisions</code> argument specifies the list of decisions made while processing the task.</p> <p>A <code>DecisionTaskCompleted</code> event is added to the workflow history. The <code>executionContext</code> specified is attached to the event in the workflow execution history.</p> <p> <b>Access Control</b> </p> <p>If an IAM policy grants permission to use <code>RespondDecisionTaskCompleted</code>, it can express permissions for the list of decisions in the <code>decisions</code> parameter. Each of the decisions has one or more parameters, much like a regular API call. To allow for policies to be as readable as possible, you can express permissions on decisions as if they were actual API calls, including applying conditions to some parameters. For more information, see <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html">Using IAM to Manage Access to Amazon SWF Workflows</a> in the <i>Amazon SWF Developer Guide</i>.</p>
responses:
'200':
description: Success
'480':
description: UnknownResourceFault
content:
application/json:
schema:
$ref: '#/components/schemas/UnknownResourceFault'
'481':
description: OperationNotPermittedFault
content:
application/json:
schema:
$ref: '#/components/schemas/OperationNotPermittedFault'
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/RespondDecisionTaskCompletedInput'
parameters:
- name: X-Amz-Target
in: header
required: true
schema:
type: string
enum:
- SimpleWorkflowService.RespondDecisionTaskCompleted
example: SimpleWorkflowService.RespondDecisionTaskCompleted
summary: Amazon SWF Respond Decision Task Completed
x-microcks-operation:
delay: 0
dispatcher: FALLBACK
tags:
- '#X Amz Target=SimpleWorkflowService.RespondDecisionTaskCompleted'
components:
schemas:
RequestCancelExternalWorkflowExecutionDecisionAttributes:
type: object
required:
- workflowId
properties:
workflowId:
allOf:
- $ref: '#/components/schemas/WorkflowId'
- description: ' The <code>workflowId</code> of the external workflow execution to cancel.'
runId:
allOf:
- $ref: '#/components/schemas/WorkflowRunIdOptional'
- description: The <code>runId</code> of the external workflow execution to cancel.
control:
allOf:
- $ref: '#/components/schemas/Data'
- description: The data attached to the event that can be used by the decider in subsequent workflow tasks.
description: <p>Provides the details of the <code>RequestCancelExternalWorkflowExecution</code> decision.</p> <p> <b>Access Control</b> </p> <p>You can use IAM policies to control this decision's access to Amazon SWF resources as follows:</p> <ul> <li> <p>Use a <code>Resource</code> element with the domain name to limit the action to only specified domains.</p> </li> <li> <p>Use an <code>Action</code> element to allow or deny permission to call this action.</p> </li> <li> <p>You cannot use an IAM policy to constrain this action's parameters.</p> </li> </ul> <p>If the caller doesn't have sufficient permissions to invoke the action, or the parameter values fall outside the specified constraints, the action fails. The associated event attribute's <code>cause</code> parameter is set to <code>OPERATION_NOT_PERMITTED</code>. For details and example IAM policies, see <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html">Using IAM to Manage Access to Amazon SWF Workflows</a> in the <i>Amazon SWF Developer Guide</i>.</p>
RespondDecisionTaskCompletedInput:
type: object
required:
- taskToken
title: RespondDecisionTaskCompletedInput
properties:
taskToken:
allOf:
- $ref: '#/components/schemas/TaskToken'
- description: <p>The <code>taskToken</code> from the <a>DecisionTask</a>.</p> <important> <p> <code>taskToken</code> is generated by the service and should be treated as an opaque value. If the task is passed to another process, its <code>taskToken</code> must also be passed. This enables it to provide its progress and respond with results.</p> </important>
decisions:
allOf:
- $ref: '#/components/schemas/DecisionList'
- description: The list of decisions (possibly empty) made by the decider while processing this decision task. See the docs for the <a>Decision</a> structure for details.
executionContext:
allOf:
- $ref: '#/components/schemas/Data'
- description: User defined context to add to workflow execution.
description: Input data for a TaskCompleted response to a decision task.
UnknownResourceFault: {}
WorkflowId:
type: string
minLength: 1
maxLength: 256
MarkerName:
type: string
minLength: 1
maxLength: 256
Tag:
type: string
minLength: 0
maxLength: 256
ActivityType:
type: object
required:
- name
- version
properties:
name:
allOf:
- $ref: '#/components/schemas/Name'
- description: <p>The name of this activity.</p> <note> <p>The combination of activity type name and version must be unique within a domain.</p> </note>
version:
allOf:
- $ref: '#/components/schemas/Version'
- description: <p>The version of this activity.</p> <note> <p>The combination of activity type name and version must be unique with in a domain.</p> </note>
description: Represents an activity type.
TaskToken:
type: string
minLength: 1
maxLength: 1024
ChildPolicy:
type: string
enum:
- TERMINATE
- REQUEST_CANCEL
- ABANDON
FunctionName:
type: string
minLength: 1
maxLength: 64
ScheduleActivityTaskDecisionAttributes:
type: object
required:
- activityType
- activityId
properties:
activityType:
allOf:
- $ref: '#/components/schemas/ActivityType'
- description: ' The type of the activity task to schedule.'
activityId:
allOf:
- $ref: '#/components/schemas/ActivityId'
- description: <p> The <code>activityId</code> of the activity task.</p> <p>The specified string must not contain a <code>:</code> (colon), <code>/</code> (slash), <code>|</code> (vertical bar), or any control characters (<code>\u0000-\u001f</code> | <code>\u007f-\u009f</code>). Also, it must <i>not</i> be the literal string <code>arn</code>.</p>
control:
allOf:
- $ref: '#/components/schemas/Data'
- description: Data attached to the event that can be used by the decider in subsequent workflow tasks. This data isn't sent to the activity.
input:
allOf:
- $ref: '#/components/schemas/Data'
- description: The input provided to the activity task.
scheduleToCloseTimeout:
allOf:
- $ref: '#/components/schemas/DurationInSecondsOptional'
- description: <p>The maximum duration for this activity task.</p> <p>The duration is specified in seconds, an integer greater than or equal to <code>0</code>. You can use <code>NONE</code> to specify unlimited duration.</p> <note> <p>A schedule-to-close timeout for this activity task must be specified either as a default for the activity type or through this field. If neither this field is set nor a default schedule-to-close timeout was specified at registration time then a fault is returned.</p> </note>
taskList:
allOf:
- $ref: '#/components/schemas/TaskList'
- description: <p>If set, specifies the name of the task list in which to schedule the activity task. If not specified, the <code>defaultTaskList</code> registered with the activity type is used.</p> <note> <p>A task list for this activity task must be specified either as a default for the activity type or through this field. If neither this field is set nor a default task list was specified at registration time then a fault is returned.</p> </note> <p>The specified string must not contain a <code>:</code> (colon), <code>/</code> (slash), <code>|</code> (vertical bar), or any control characters (<code>\u0000-\u001f</code> | <code>\u007f-\u009f</code>). Also, it must <i>not</i> be the literal string <code>arn</code>.</p>
taskPriority:
allOf:
- $ref: '#/components/schemas/TaskPriority'
- description: <p> If set, specifies the priority with which the activity task is to be assigned to a worker. This overrides the defaultTaskPriority specified when registering the activity type using <a>RegisterActivityType</a>. Valid values are integers that range from Java's <code>Integer.MIN_VALUE</code> (-2147483648) to <code>Integer.MAX_VALUE</code> (2147483647). Higher numbers indicate higher priority.</p> <p>For more information about setting task priority, see <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/programming-priority.html">Setting Task Priority</a> in the <i>Amazon SWF Developer Guide</i>.</p>
scheduleToStartTimeout:
allOf:
- $ref: '#/components/schemas/DurationInSecondsOptional'
- description: <p> If set, specifies the maximum duration the activity task can wait to be assigned to a worker. This overrides the default schedule-to-start timeout specified when registering the activity type using <a>RegisterActivityType</a>.</p> <p>The duration is specified in seconds, an integer greater than or equal to <code>0</code>. You can use <code>NONE</code> to specify unlimited duration.</p> <note> <p>A schedule-to-start timeout for this activity task must be specified either as a default for the activity type or through this field. If neither this field is set nor a default schedule-to-start timeout was specified at registration time then a fault is returned.</p> </note>
startToCloseTimeout:
allOf:
- $ref: '#/components/schemas/DurationInSecondsOptional'
- description: <p>If set, specifies the maximum duration a worker may take to process this activity task. This overrides the default start-to-close timeout specified when registering the activity type using <a>RegisterActivityType</a>.</p> <p>The duration is specified in seconds, an integer greater than or equal to <code>0</code>. You can use <code>NONE</code> to specify unlimited duration.</p> <note> <p>A start-to-close timeout for this activity task must be specified either as a default for the activity type or through this field. If neither this field is set nor a default start-to-close timeout was specified at registration time then a fault is returned.</p> </note>
heartbeatTimeout:
allOf:
- $ref: '#/components/schemas/DurationInSecondsOptional'
- description: <p>If set, specifies the maximum time before which a worker processing a task of this type must report progress by calling <a>RecordActivityTaskHeartbeat</a>. If the timeout is exceeded, the activity task is automatically timed out. If the worker subsequently attempts to record a heartbeat or returns a result, it is ignored. This overrides the default heartbeat timeout specified when registering the activity type using <a>RegisterActivityType</a>.</p> <p>The duration is specified in seconds, an integer greater than or equal to <code>0</code>. You can use <code>NONE</code> to specify unlimited duration.</p>
description: <p>Provides the details of the <code>ScheduleActivityTask</code> decision.</p> <p> <b>Access Control</b> </p> <p>You can use IAM policies to control this decision's access to Amazon SWF resources as follows:</p> <ul> <li> <p>Use a <code>Resource</code> element with the domain name to limit the action to only specified domains.</p> </li> <li> <p>Use an <code>Action</code> element to allow or deny permission to call this action.</p> </li> <li> <p>Constrain the following parameters by using a <code>Condition</code> element with the appropriate keys.</p> <ul> <li> <p> <code>activityType.name</code> – String constraint. The key is <code>swf:activityType.name</code>.</p> </li> <li> <p> <code>activityType.version</code> – String constraint. The key is <code>swf:activityType.version</code>.</p> </li> <li> <p> <code>taskList</code> – String constraint. The key is <code>swf:taskList.name</code>.</p> </li> </ul> </li> </ul> <p>If the caller doesn't have sufficient permissions to invoke the action, or the parameter values fall outside the specified constraints, the action fails. The associated event attribute's <code>cause</code> parameter is set to <code>OPERATION_NOT_PERMITTED</code>. For details and example IAM policies, see <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html">Using IAM to Manage Access to Amazon SWF Workflows</a> in the <i>Amazon SWF Developer Guide</i>.</p>
CancelTimerDecisionAttributes:
type: object
required:
- timerId
properties:
timerId:
allOf:
- $ref: '#/components/schemas/TimerId'
- description: ' The unique ID of the timer to cancel.'
description: <p>Provides the details of the <code>CancelTimer</code> decision.</p> <p> <b>Access Control</b> </p> <p>You can use IAM policies to control this decision's access to Amazon SWF resources as follows:</p> <ul> <li> <p>Use a <code>Resource</code> element with the domain name to limit the action to only specified domains.</p> </li> <li> <p>Use an <code>Action</code> element to allow or deny permission to call this action.</p> </li> <li> <p>You cannot use an IAM policy to constrain this action's parameters.</p> </li> </ul> <p>If the caller doesn't have sufficient permissions to invoke the action, or the parameter values fall outside the specified constraints, the action fails. The associated event attribute's <code>cause</code> parameter is set to <code>OPERATION_NOT_PERMITTED</code>. For details and example IAM policies, see <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html">Using IAM to Manage Access to Amazon SWF Workflows</a> in the <i>Amazon SWF Developer Guide</i>.</p>
OperationNotPermittedFault: {}
TagList:
type: array
items:
$ref: '#/components/schemas/Tag'
maxItems: 5
WorkflowRunIdOptional:
type: string
maxLength: 64
ActivityId:
type: string
minLength: 1
maxLength: 256
Arn:
type: string
minLength: 1
maxLength: 1600
CompleteWorkflowExecutionDecisionAttributes:
type: object
properties:
result:
allOf:
- $ref: '#/components/schemas/Data'
- description: The result of the workflow execution. The form of the result is implementation defined.
description: <p>Provides the details of the <code>CompleteWorkflowExecution</code> decision.</p> <p> <b>Access Control</b> </p> <p>You can use IAM policies to control this decision's access to Amazon SWF resources as follows:</p> <ul> <li> <p>Use a <code>Resource</code> element with the domain name to limit the action to only specified domains.</p> </li> <li> <p>Use an <code>Action</code> element to allow or deny permission to call this action.</p> </li> <li> <p>You cannot use an IAM policy to constrain this action's parameters.</p> </li> </ul> <p>If the caller doesn't have sufficient permissions to invoke the action, or the parameter values fall outside the specified constraints, the action fails. The associated event attribute's <code>cause</code> parameter is set to <code>OPERATION_NOT_PERMITTED</code>. For details and example IAM policies, see <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html">Using IAM to Manage Access to Amazon SWF Workflows</a> in the <i>Amazon SWF Developer Guide</i>.</p>
SignalExternalWorkflowExecutionDecisionAttributes:
type: object
required:
- workflowId
- signalName
properties:
workflowId:
allOf:
- $ref: '#/components/schemas/WorkflowId'
- description: ' The <code>workflowId</code> of the workflow execution to be signaled.'
runId:
allOf:
- $ref: '#/components/schemas/WorkflowRunIdOptional'
- description: The <code>runId</code> of the workflow execution to be signaled.
signalName:
allOf:
- $ref: '#/components/schemas/SignalName'
- description: ' The name of the signal.The target workflow execution uses the signal name and input to process the signal.'
input:
allOf:
- $ref: '#/components/schemas/Data'
- description: ' The input data to be provided with the signal. The target workflow execution uses the signal name and input data to process the signal.'
control:
allOf:
- $ref: '#/components/schemas/Data'
- description: The data attached to the event that can be used by the decider in subsequent decision tasks.
description: <p>Provides the details of the <code>SignalExternalWorkflowExecution</code> decision.</p> <p> <b>Access Control</b> </p> <p>You can use IAM policies to control this decision's access to Amazon SWF resources as follows:</p> <ul> <li> <p>Use a <code>Resource</code> element with the domain name to limit the action to only specified domains.</p> </li> <li> <p>Use an <code>Action</code> element to allow or deny permission to call this action.</p> </li> <li> <p>You cannot use an IAM policy to constrain this action's parameters.</p> </li> </ul> <p>If the caller doesn't have sufficient permissions to invoke the action, or the parameter values fall outside the specified constraints, the action fails. The associated event attribute's <code>cause</code> parameter is set to <code>OPERATION_NOT_PERMITTED</code>. For details and example IAM policies, see <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html">Using IAM to Manage Access to Amazon SWF Workflows</a> in the <i>Amazon SWF Developer Guide</i>.</p>
Decision:
type: object
required:
- decisionType
properties:
decisionType:
allOf:
- $ref: '#/components/schemas/DecisionType'
- description: Specifies the type of the decision.
scheduleActivityTaskDecisionAttributes:
allOf:
- $ref: '#/components/schemas/ScheduleActivityTaskDecisionAttributes'
- description: Provides the details of the <code>ScheduleActivityTask</code> decision. It isn't set for other decision types.
requestCancelActivityTaskDecisionAttributes:
allOf:
- $ref: '#/components/schemas/RequestCancelActivityTaskDecisionAttributes'
- description: Provides the details of the <code>RequestCancelActivityTask</code> decision. It isn't set for other decision types.
completeWorkflowExecutionDecisionAttributes:
allOf:
- $ref: '#/components/schemas/CompleteWorkflowExecutionDecisionAttributes'
- description: Provides the details of the <code>CompleteWorkflowExecution</code> decision. It isn't set for other decision types.
failWorkflowExecutionDecisionAttributes:
allOf:
- $ref: '#/components/schemas/FailWorkflowExecutionDecisionAttributes'
- description: Provides the details of the <code>FailWorkflowExecution</code> decision. It isn't set for other decision types.
cancelWorkflowExecutionDecisionAttributes:
allOf:
- $ref: '#/components/schemas/CancelWorkflowExecutionDecisionAttributes'
- description: Provides the details of the <code>CancelWorkflowExecution</code> decision. It isn't set for other decision types.
continueAsNewWorkflowExecutionDecisionAttributes:
allOf:
- $ref: '#/components/schemas/ContinueAsNewWorkflowExecutionDecisionAttributes'
- description: Provides the details of the <code>ContinueAsNewWorkflowExecution</code> decision. It isn't set for other decision types.
recordMarkerDecisionAttributes:
allOf:
- $ref: '#/components/schemas/RecordMarkerDecisionAttributes'
- description: Provides the details of the <code>RecordMarker</code> decision. It isn't set for other decision types.
startTimerDecisionAttributes:
allOf:
- $ref: '#/components/schemas/StartTimerDecisionAttributes'
- description: Provides the details of the <code>StartTimer</code> decision. It isn't set for other decision types.
cancelTimerDecisionAttributes:
allOf:
- $ref: '#/components/schemas/CancelTimerDecisionAttributes'
- description: Provides the details of the <code>CancelTimer</code> decision. It isn't set for other decision types.
signalExternalWorkflowExecutionDecisionAttributes:
allOf:
- $ref: '#/components/schemas/SignalExternalWorkflowExecutionDecisionAttributes'
- description: Provides the details of the <code>SignalExternalWorkflowExecution</code> decision. It isn't set for other decision types.
requestCancelExternalWorkflowExecutionDecisionAttributes:
allOf:
- $ref: '#/components/schemas/RequestCancelExternalWorkflowExecutionDecisionAttributes'
- description: Provides the details of the <code>RequestCancelExternalWorkflowExecution</code> decision. It isn't set for other decision types.
startChildWorkflowExecutionDecisionAttributes:
allOf:
- $ref: '#/components/schemas/StartChildWorkflowExecutionDecisionAttributes'
- description: Provides the details of the <code>StartChildWorkflowExecution</code> decision. It isn't set for other decision types.
scheduleLambdaFunctionDecisionAttributes:
allOf:
- $ref: '#/components/schemas/ScheduleLambdaFunctionDecisionAttributes'
- description: Provides the details of the <code>ScheduleLambdaFunction</code> decision. It isn't set for other decision types.
description: '<p>Specifies a decision made by the decider. A decision can be one of these types:</p> <ul> <li> <p> <code>CancelTimer</code> – Cancels a previously started timer and records a <code>TimerCanceled</code> event in the history.</p> </li> <li> <p> <code>CancelWorkflowExecution</code> – Closes the workflow execution and records a <code>WorkflowExecutionCanceled</code> event in the history.</p> </li> <li> <p> <code>CompleteWorkflowExecution</code> – Closes the workflow execution and records a <code>WorkflowExecutionCompleted</code> event in the history .</p> </li> <li> <p> <code>ContinueAsNewWorkflowExecution</code> – Closes the workflow execution and starts a new workflow execution of the same type using the same workflow ID and a unique run Id. A <code>WorkflowExecutionContinuedAsNew</code> event is recorded in the history.</p> </li> <li> <p> <code>FailWorkflowExecution</code> – Closes the workflow execution and records a <code>WorkflowExecutionFailed</code> event in the history.</p> </li> <li> <p> <code>RecordMarker</code> – Records a <code>MarkerRecorded</code> event in the history. Markers can be used for adding custom information in the history for instance to let deciders know that they don''t need to look at the history beyond the marker event.</p> </li> <li> <p> <code>RequestCancelActivityTask</code> – Attempts to cancel a previously scheduled activity task. If the activity task was scheduled but has not been assigned to a worker, then it is canceled. If the activity task was already assigned to a worker, then the worker is informed that cancellation has been requested in the response to <a>RecordActivityTaskHeartbeat</a>.</p> </li> <li> <p> <code>RequestCancelExternalWorkflowExecution</code> – Requests that a request be made to cancel the specified external workflow execution and records a <code>RequestCancelExternalWorkflowExecutionInitiated</code> event in the history.</p> </li> <li> <p> <code>ScheduleActivityTask</code> – Schedules an activity task.</p> </li> <li> <p> <code>SignalExternalWorkflowExecution</code> – Requests a signal to be delivered to the specified external workflow execution and records a <code>SignalExternalWorkflowExecutionInitiated</code> event in the history.</p> </li> <li> <p> <code>StartChildWorkflowExecution</code> – Requests that a child workflow execution be started and records a <code>StartChildWorkflowExecutionInitiated</code> event in the history. The child workflow execution is a separate workflow execution with its own history.</p> </li> <li> <p> <code>StartTimer</code> – Starts a timer for this workflow execution and records a <code>TimerStarted</code> event in the history. This timer fires after the specified delay and record a <code>TimerFired</code> event.</p> </li> </ul> <p> <b>Access Control</b> </p> <p>If you grant permission to use <code>RespondDecisionTaskCompleted</code>, you can use IAM policies to express permissions for the list of decisions returned by this action as if they were members of the API. Treating decisions as a pseudo API maintains a uniform conceptual model and helps keep policies readable. For details and example IAM policies, see <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html">Using IAM to Manage Access to Amazon SWF Workflows</a> in the <i>Amazon SWF Developer Guide</i>.</p> <p> <b>Decision Failure</b> </p> <p>Decisions can fail for several reasons</p> <ul> <li> <p>The ordering of decisions should follow a logical flow. Some decisions might not make sense in the current context of the workflow execution and therefore fails.</p> </li> <li> <p>A limit on your account was reached.</p> </li> <li> <p>The decision lacks sufficient permissions.</p> </li> </ul> <p>One of the following events might be added to the history to indicate an error. The event attribute''s <code>cause</code> parameter indicates the cause. If <code>cause</code> is set to <code>OPERATION_NOT_PERMITTED</code>, the decision failed because it lacked sufficient permissions. For details and example IAM policies, see <a href="https://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html">Using IAM to Manage Access to Amazon SWF Workflows</a> in the <i>Amazon SWF Developer Guide</i>.</p> <ul> <li> <p> <code>ScheduleActivityTaskFailed</code> – A <code>ScheduleActivityTask</code> decision failed. This could happen if the activity type specified in the decision isn''t registered, is in a deprecated state, or the decision isn''t properly configured.</p> </li> <li> <p> <code>RequestCancelActivityTaskFailed</code> – A <code>RequestCancelActivityTask</code> decision failed. This could happen if there is no open activity task with the specified activityId.</p> </li> <li> <p> <code>StartTimerFailed</code> – A <code>StartTimer</code> decision failed. This could happen if there is another open timer with the same timerId.</p> </li> <li> <p> <code>CancelTimerFailed</code> – A <code>CancelTimer</code> decision failed. This could happen if there is no open timer with the specified timerId.</p> </li> <li> <p> <code>StartChildWorkflowExecutionFailed</code> – A <code>StartChildWorkflowExecution</code> decision failed. This could happen if the workflow type specified isn''t registered, is deprecated, or the decision isn''t properly configured.</p> </li> <li> <p> <code>SignalExternalWorkflowExecutionFailed</code> – A <code>SignalExternalWorkflowExecution<
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