Register Celery Class-based Task

Question

Python 3.x, Celery 4.x...

I have a class-based task.

myproj/celery.py

from celery import Celery

# django settings stuff...

app         


        

Answer 1

You can find full description here, but for me it was enough to add

from myapp.celery import app
app.tasks.register(MyTaskTask())

Answer 2

With celery==4.2.1 I had to use the return value of Celery.register_task() as the task instance to call delay() on:

# my_app/tasks.py
import celery

from my_app.celery import app

class MyTask(celery.Task):
    def run(self):
        [...]

MyTask = app.register_task(MyTask())

Then to use it:

# my_app/app.py
from my_app.tasks import MyTask

[...]

MyTask.delay()

The solution was described in a Github issue and is documented here.

Hth, dtk