Pulp

Right now all we can return for viewsets that dispatch tasks is a single task. This has two problems

1. In cases where a viewset dispatches many tasks, the viewset can't hand back more than one task.
2. In cases where a viewset dispatches a task group, we have no way of returning a reference to that task group.

Current machinery¶

The viewsets return an instance of OperationPostponedResponse. For example, here is pulp_file's usage of it.

The openAPI schema part is handled by the viewset manually declaring the AsyncOperationResponseSerializer as the return type. You can see that here in pulp_file for example.

Proposed machinery¶

Add a TaskGroupOperationPostponedResponse which would be just like OperationPostponedResponse except it would return a task_group instead of task.

Add a TaskGroupOperationResponseSerializer which would be just like AsyncOperationResponseSerializer only serialized for task_group instead of task.