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Flask-Celery 2.4.3

Celery integration for Flask

FROM CELERY 3.0 THIS LIBRARY IS NO LONGER NECESSARY, INSTEAD YOU SHOULD USE THE STANDARD CELERY API

Using Flask with Celery

From Celery 3.0 the Flask-Celery integration package is no longer recommended and you should use the standard Celery API instead.

Please read the Celery getting started tutorial:

http://docs.celeryproject.org/en/latest/getting-started/first-steps-with-celery.html

You can easily add Celery to your flask application like this:

myapp.py:

from celery import Celery

celery = Celery('myapp', broker='amqp://guest@localhost//')

@celery.task
def add(x, y):
    return x + y

To start the worker you can then launch the celery worker command by pointing to your celery app instance:

$ celery -A myapp worker -l info

(if the app argument (-A|--app) is a module/package instead of an attribute it will automatically expand into myapp.celery)

See the commands help screen for more information:

$ celery help

If you want use the flask configuration as a source for the celery configuration you can do that like this:

celery = Celery('myapp')
celery.config_from_object(flask_app.config)

If you need access to the request inside your task then you can use the test context:

from flask import Flask
from celery import Celery

app = Flask('myapp')
celery = Celery('myapp')

celery.config_from_object(app.config)

@celery.task
def hello():
    with app.test_request_context() as request:
        print('Hello {0!r}.format(request))
 
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