How use Django with Tornado web server?

Question

How do I use Django with the Tornado web server?

Answer 1

There's a project called tornado-proxy that would help you. But I would like to recommend that you use Nginx. In the Nginx config you could now use proxy_pass to direct your calls like this:

location /comet {
  proxy_pass http://localhost:8081;
}

location / {
  proxy_pass http://localhost:8080;
}

Answer 2

it's very simple ( especially with django 1.4) .

1 - just build your django project( and apps ) and make sure it works fine.

2- create a new python file at the root folder ( same dir where you used django-admin.py startproject)

3- then copy the code below , edit the os.environ['DJANGO_SETTINGS_MODULE'] line, and paste it in that new .py file.

import os
import tornado.httpserver
import tornado.ioloop
import tornado.wsgi
import sys
import django.core.handlers.wsgi
#sys.path.append('/home/lawgon/') # path to your project ( if you have it in another dir).


def main():
    os.environ['DJANGO_SETTINGS_MODULE'] = 'myProject.settings' # path to your settings module
    application = django.core.handlers.wsgi.WSGIHandler()
    container = tornado.wsgi.WSGIContainer(application)
    http_server = tornado.httpserver.HTTPServer(container)
    http_server.listen(8888)
    tornado.ioloop.IOLoop.instance().start()

if __name__ == "__main__":
    main()

Django 1.6+ it should be like this:

import os
import tornado.httpserver
import tornado.ioloop
import tornado.wsgi
from django.core.wsgi import get_wsgi_application

def main():
    os.environ['DJANGO_SETTINGS_MODULE'] = 'myproject.settings' # path to your settings module
    application = get_wsgi_application()
    container = tornado.wsgi.WSGIContainer(application)
    http_server = tornado.httpserver.HTTPServer(container)
    http_server.listen(8888)
    tornado.ioloop.IOLoop.instance().start()

if __name__ == "__main__":
    main()

Answer 3

UPDATE:

I created a minimal working demo which shows how to use the Tornado web server to run nicely with django:

https://github.com/tamasgal/django-tornado

ORIGINAL POST:

Just a remark: The WSGI application workflow has been changed from 1.6 to 1.7. You have to replace the import

import django.core.handlers.wsgi

with

from django.core.wsgi import get_wsgi_application

and change the application initialisation from

application = django.core.handlers.wsgi.WSGIHandler()

to

application = get_wsgi_application()

This is the modified code from the Moayyad Yaghi's answer:

import os
import tornado.httpserver
import tornado.ioloop
import tornado.wsgi
import sys
import django.core.handlers.wsgi
from django.core.wsgi import get_wsgi_application
#sys.path.append('/home/lawgon/') # path to your project ( if you have it in another dir).


def main():
    os.environ['DJANGO_SETTINGS_MODULE'] = 'myProject.settings' # path to your settings module
    application = django.core.handlers.wsgi.WSGIHandler()
    application = get_wsgi_application()
    container = tornado.wsgi.WSGIContainer(application)
    http_server = tornado.httpserver.HTTPServer(container)
    http_server.listen(8888)
    tornado.ioloop.IOLoop.instance().start()

if __name__ == "__main__":
    main()

Answer 4

In real world you would connect Django and some production-ready webserver with WSGI. This demo shows how you can run Tornado (and it's webserver) and Django side by side from one python module serving different URL prefixes: https://github.com/bdarnell/django-tornado-demo. Tornado would block on serving any request directed to Django, though.