Django 3 and Daphne deploy

Hi,

I’m trying to implement a simple socket emit with Django 3 and Daphne, but for some reason the event emited isn’t never captured by the client. Here is my code

asgi.py

import os
import socketio

from django.core.asgi import get_asgi_application

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'eleicoes.settings')

sio = socketio.AsyncServer(async_mode='asgi', cors_allowed_origins='*')
application = socketio.ASGIApp(sio, get_asgi_application())

views.py

from eleicoes.asgi import sio

# other code

print('emit vote event', sio)
sio.emit('user', UserSerializer(instance=request.user).data)

# other code

It simples doesn’t work. I think I followed the documentation in this matter but I can’t find anything with this specific setup (django 3 and daphne)

[miguelgrinberg]

I suggest you remove cors_allowed_origins='*'. This is basically allowing anybody to connect to your server, and can open the door to CSRF attacks. My recommendation is that you explicitly name the allowed origins instead.

[nunesvictor]

I honestly don’t know how to thank you. Apparently the problem was I had added the wrong async_mode on socketio.Server. I’ll put the correct configuration down here to whoever this may help in the future.

myapp.wsgi

import os
import socketio

from django.core.wsgi import get_wsgi_application

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myapp.settings')

sio = socketio.Server(
    async_mode='gevent_uwsgi',
    # implement allowed origins
    # cors_allowed_origins='*',
    # uncomment to enable logging
    # engineio_logger=True,
    # logger=True,
)

application = socketio.WSGIApp(sio, get_wsgi_application())

uWSGI command line uwsgi --http :8000 --gevent 1000 --http-websockets --master --module myapp.wsgi:application