use on_success and on_failure methon in django-celery

Question

I am using djcelery. I have created one task.

@celery.decorators.periodic_task(run_every=datetime.timedelta(minutes=2))
def add(x, y):
    cont= 0
    print x
    print y
    for i in range(x, y):
        cont = cont+1
    return cont

i clalled it in view.py

def home(request):
    print "debug"
    st = add.delay(63,230)
    return  render(request, 'home/home.html', {})

now how can i detect the task is complete or failed. i want to perform certain actions on success and failure.

[the docs](http://celery.readthedocs.org/en/latest/userguide/calling.html#linking-callbacks-errbacks) seem pretty clear on how to use this. — scytale, Aug 17 '15 at 09:39

score -1 · Answer 1 · answered Aug 17 '15 at 08:54

-1

Depends on your use case, but one way would be to save a flag in memory (cache, database, etc) and update it accordingly.

To display any async updates frontend, create an endpoint to check the flag and poll it with ajax.

answered Aug 17 '15 at 08:54

Hedde van der Heide

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how to use on_succeed() and on_failure() method of class TaskEvent? – Wagh Aug 17 '15 at 09:59

use on_success and on_failure methon in django-celery

1 Answers1