When working with dramatiq 1.9.0 (flask-dramatiq 0.6.0) I'm unable to call on_success- or on_failure-callbacks. The official dramatiq-documentation states callbacks can be used like this:
@dramatiq.actor
def taskFailed(message_data, exception_data):
print("Task failed")
@dramatiq.actor
def taskSucceeded(message_data, result):
print("Success")
dramatiqTask.send_with_options(args=(1, 2, 3), on_success=taskSucceeded, on_failure=taskFailed)
However, I'm getting the following error:
ERROR - on_failure value must be an Actor
In .../site-packages/dramatiq/actor.py there is
def message_with_options(self, *, args=None, kwargs=None, **options):
for name in ["on_failure", "on_success"]:
callback = options.get(name)
print(str(type(callback))) # Returns "<class 'flask_dramatiq.LazyActor'>"
if isinstance(callback, Actor):
options[name] = callback.actor_name
elif not isinstance(callback, (type(None), str)):
raise TypeError(name + " value must be an Actor")
which shows that the callback isn't from the type Actor but flask-dramatiqs LazyActor.
If I import the original package with import dramatiq as _dramatiq and change the decorator to _dramatiq.actor, nothing happens at all. The task won't start.
How do I define callbacks in flask-dramatiq?
