RQ (Redis Queue) integration for Flask applications
$ pip install flask-rqTo quickly start using rq, simply create an RQ instance:
from flask import Flask
from flask.ext.rq import RQ
app = Flask(__name__)
RQ(app)Provides a way to quickly set a function as an rq job:
from flask.ext.rq import job
@job
def process(i):
# Long stuff to process
process.delay(3)A specific queue name can also be passed as argument:
@job('low')
def process(i):
# Long stuff to process
process.delay(2)Returns default queue or specific queue for name given as argument:
from flask.ext.rq import get_queue
job = get_queue().enqueue(stuff) # Creates a job on ``default`` queue
job = get_queue('low').enqueue(stuff) # Creates a job on ``low`` queueReturns a worker for default queue or specific queues for names given as arguments:
from flask.ext.rq import get_worker
# Creates a worker that handle jobs in ``default`` queue.
get_worker().work(True)
# Creates a worker that handle jobs in both ``default`` and ``low`` queues.
get_worker('default', 'low').work(True)
# Note: These queues have to share the same connectionget_scheduler function ~~~~~~~~~~~~~~~~~~~~~~~
If RQ-Scheduler is installed this returns a scheduler bound to Flask-RQ's connection
from flask.ext.rq import get_scheduler
get_scheduler(interval=5).schedule(scheduled_time=datetime.utcnow(),
func=process,
interval=10,
repeat=None)
get_scheduler().run()By default Flask-RQ will connect to the default, locally running Redis server. One can change the connection settings for the default server like so:
app.config['RQ_DEFAULT_HOST'] = 'somewhere.com'
app.config['RQ_DEFAULT_PORT'] = 6479
app.config['RQ_DEFAULT_PASSWORD'] = 'password'
app.config['RQ_DEFAULT_DB'] = 1Queue connection can also be set using a DSN:
app.config['RQ_LOW_URL'] = 'redis://localhost:6379/2'