CountPendingActivityTasks
Returns the estimated number of activity tasks in the specified task list. The count
returned is an approximation and isn't guaranteed to be exact. If you specify a task list that
no activity task was ever scheduled in then 0 is returned.
Access Control
You can use IAM policies to control this action's access to Amazon SWF resources as follows:
-
Use a
Resourceelement with the domain name to limit the action to only specified domains. -
Use an
Actionelement to allow or deny permission to call this action. -
Constrain the
taskList.nameparameter by using aConditionelement with theswf:taskList.namekey to allow the action to access only certain task lists.
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
{
"domain": "string",
"taskList": {
"name": "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.
Response Syntax
{
"count": number,
"truncated": boolean
}Response Elements
If the action is successful, the service sends back an HTTP 200 response.
The following data is returned in JSON format by the service.
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
Examples
CountPendingActivityTasks Example
This example illustrates one usage of CountPendingActivityTasks.
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 03:29:28 GMT
X-Amz-Target: SimpleWorkflowService.CountPendingActivityTasks
Content-Encoding: amz-1.0
X-Amzn-Authorization: AWS3 AWSAccessKeyId=AKIAIOSFODNN7EXAMPLE,Algorithm=HmacSHA256,SignedHeaders=Host;X-Amz-Date;X-Amz-Target;Content-Encoding,Signature=eCNiyyl5qmP0gGQ0hM8LqeRzxEvVZ0LAjE4oxVzzk9w=
Referer: http://swf.us-east-1.amazonaws.com/explorer/index.html
Content-Length: 70
Pragma: no-cache
Cache-Control: no-cache
{"domain": "867530901",
"taskList":
{"name": "specialTaskList"}
}Sample Response
HTTP/1.1 200 OK
Content-Length: 29
Content-Type: application/json
x-amzn-RequestId: 4b977c76-3ff2-11e1-a23a-99d60383ae71
{"count":1,"truncated":false}See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
