Used by workers to get an ActivityTask from the specified activity
Workers should set their client side socket timeout to at least 70 seconds (10 seconds
higher than the maximum time service may hold the poll request).
This initiates a long poll, where the service holds the HTTP connection open and responds
as soon as a task becomes available. 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 an empty result. An empty result, in this context, means that an
ActivityTask is returned, but that the value of taskToken is an empty string. If a
task is returned, the worker should use its type to identify and process it correctly.
Workers should set their client side socket timeout to at least 70 seconds (10 seconds higher than the maximum time service may hold the poll request).
You can use IAM policies to control this action's access to Amazon SWF resources as follows:
Resource element with the domain name to limit the action to only
Action element to allow or deny permission to call this action.
taskList.name parameter by using a
element with the
swf:taskList.name key 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
cause parameter is set to
For details and example IAM policies, see Using
IAM to Manage Access to Amazon SWF Workflows in the Amazon SWF Developer Guide.
For PCL this operation is only available in asynchronous form. Please refer to PollForActivityTaskAsync.
public virtual PollForActivityTaskResponse PollForActivityTask( PollForActivityTaskRequest request )
Container for the necessary parameters to execute the PollForActivityTask service method.
|LimitExceededException||Returned by any operation if a system imposed limitation has been reached. To address this fault you should either clean up unused resources or increase the limit by contacting AWS.|
|OperationNotPermittedException||Returned when the caller doesn't have sufficient permissions to invoke the action.|
|UnknownResourceException||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.|
Supported in: 4.5, 4.0, 3.5
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms