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Amazon Simple Workflow Service
API Reference (API Version 2012-01-25)

TerminateWorkflowExecution

Records a WorkflowExecutionTerminated event and forces closure of the workflow execution identified by the given domain, runId, and workflowId. The child policy, registered with the workflow type or specified when starting this execution, is applied to any open child workflow executions of this workflow execution.

Important

If the identified workflow execution was in progress, it is terminated immediately.

Note

If a runId isn't specified, then the WorkflowExecutionTerminated event is recorded in the history of the current open workflow with the matching workflowId in the domain.

Note

You should consider using RequestCancelWorkflowExecution action instead because it allows the workflow to gracefully close while TerminateWorkflowExecution doesn't.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

  • Use a Resource element with the domain name to limit the action to only specified domains.

  • Use an Action element to allow or deny permission to call this action.

  • You cannot use an IAM policy to constrain this action's parameters.

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 cause parameter is set to OPERATION_NOT_PERMITTED. For details and example IAM policies, see Using IAM to Manage Access to Amazon SWF Workflows in the Amazon SWF Developer Guide.

Request Syntax

{
   "childPolicy": "string",
   "details": "string",
   "domain": "string",
   "reason": "string",
   "runId": "string",
   "workflowId": "string"
}

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

childPolicy

If set, specifies the policy to use for the child workflow executions of the workflow execution being terminated. This policy overrides the child policy specified for the workflow execution at registration time or when starting the execution.

The supported child policies are:

  • TERMINATE – The child executions are terminated.

  • REQUEST_CANCEL – A request to cancel is attempted for each child execution by recording a WorkflowExecutionCancelRequested event in its history. It is up to the decider to take appropriate actions when it receives an execution history with this event.

  • ABANDON – No action is taken. The child executions continue to run.

Note

A child policy for this workflow execution must be specified either as a default for the workflow type or through this parameter. If neither this parameter is set nor a default child policy was specified at registration time then a fault is returned.

Type: String

Valid Values: TERMINATE | REQUEST_CANCEL | ABANDON

Required: No

details

Details for terminating the workflow execution.

Type: String

Length Constraints: Maximum length of 32768.

Required: No

domain

The domain of the workflow execution to terminate.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 256.

Required: Yes

reason

A descriptive reason for terminating the workflow execution.

Type: String

Length Constraints: Maximum length of 256.

Required: No

runId

The runId of the workflow execution to terminate.

Type: String

Length Constraints: Maximum length of 64.

Required: No

workflowId

The workflowId of the workflow execution to terminate.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 256.

Required: Yes

Response Elements

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

Errors

For information about the errors that are common to all actions, see Common Errors.

OperationNotPermittedFault

Returned when the caller doesn't have sufficient permissions to invoke the action.

HTTP Status Code: 400

UnknownResourceFault

Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

HTTP Status Code: 400

Example

TerminateWorkflowExecution Example

Sample Request

POST / HTTP/1.1
Host: swf.us-east-1.amazonaws.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.25) Gecko/20111212 Firefox/3.6.25 ( .NET CLR 3.5.30729; .NET4.0E)
Accept: application/json, text/javascript, */*
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 115
Connection: keep-alive
Content-Type: application/x-amz-json-1.0
X-Requested-With: XMLHttpRequest
X-Amz-Date: Mon, 16 Jan 2012 04:56:34 GMT
X-Amz-Target: SimpleWorkflowService.TerminateWorkflowExecution
Content-Encoding: amz-1.0
X-Amzn-Authorization: AWS3 AWSAccessKeyId=AKIAIOSFODNN7EXAMPLE,Algorithm=HmacSHA256,SignedHeaders=Host;X-Amz-Date;X-Amz-Target;Content-Encoding,Signature=JHMRAjN6JGPawEuhiANHfiCil9KOGfDF/cuXYmuu9S4=
Referer: http://swf.us-east-1.amazonaws.com/explorer/index.html
Content-Length: 218
Pragma: no-cache
Cache-Control: no-cache

{"domain": "867530901",
 "workflowId": "20110927-T-1",
 "runId": "94861fda-a714-4126-95d7-55ba847da8ab",
 "reason": "transaction canceled",
 "details": "customer credit card declined",
 "childPolicy": "TERMINATE"}

Sample Response

HTTP/1.1 200 OK
Content-Length: 0
Content-Type: application/json
x-amzn-RequestId: 76d68a47-3ffe-11e1-b118-3bfa5e8e7fc3

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: