RQ Python "Working outside of application context"

Question

I'm trying to use Redis & RQ to set the task of sending an email, however, the "RQ Worker" is returning runtime error while using the function to send emails outside q.enqueue works fine.

app/routes.py

routes = Blueprint("routes", __name__)
r = Redis()
q = Queue(connection=r)

def sendEmail_task(recipient, message):
    msg = Message("Test Email", sender=("Me", "shawkyelshazly2@gmail.com"), 
    recipients=[recipient])
    msg.body = message
    msg.send(mail)

@routes.route("/send_email", methods=["POST", "GET"])
def send_mail():
    if request.method == "POST":
        recipient = request.form.get('email')
        message = request.form.get('message')
        job = q.enqueue(sendEmail_task, recipient, message)
        return redirect(url_for("routes.email_sent"))

    return render_template("send_email.html")

app/__init__.py

mail = Mail()

def create_app(config_class = Config):
    app = Flask(__name__)
    from app.routes import routes
    app.register_blueprint(routes)    
    app.config.from_object(Config)

    with app.app_context():
        mail.init_app(app)

    return app

run.py

Which is outside the app folder

    from app import create_app

    app = create_app()

    if __name__ == '__main__':
        app.run(debug=True)

Possible solution [here](https://stackoverflow.com/a/11544248/2052575) — v25, Nov 11 '19 at 00:13

score 4 · Accepted Answer · answered Nov 10 '19 at 22:55

4

You're probably missing an app.app_context().push(). The Flask Mega Tutorial does it like this, but I've done it inside the task.

answered Nov 10 '19 at 22:55

Dave W. Smith

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so according to the folders structure above where should **app.app_context().push()** go exactly as i won't be able to import app from anywhere to call it inside the task function – Shawky Ahmed Nov 10 '19 at 23:03
guessing inside the task function. try `flask.current_app.app_context().push()` – Dave W. Smith Nov 11 '19 at 03:47
I did this inside the task function and importing create_app function from __init__.py `app = create_app() with app.app_context(): mail.send(msg)` – Shawky Ahmed Nov 11 '19 at 08:18
Yup, that'll do it, too – Dave W. Smith Nov 11 '19 at 17:52

RQ Python "Working outside of application context"

1 Answers1