Celery integration for Flask
Project description
- Version:
- 2.4.3
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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