Django Channel Error

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Maitreya Verma

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Dec 7, 2017, 3:03:22 AM12/7/17
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I am following this tutorial to learn django channels. 
The following procedure was used :
  • Add the following code in settings.py
    redis_host=os.environ.get('REDIS_HOST','localhost')

    CHANNEL_LAYERS={
        "default":{
            "BACKEND":"asgi_redis.RedisChannelLayer",
            "CONFIG":{
                "hosts":[(redis_host),6379],
            },
            "ROUTING":'channelproj.routing.channel_routing',
        },
    }

  • Create a file routing.py and add the following code
    from channels import route
    # This function will display all messages received in the console
    def message_handler(message):
        print(message['text'])

    channel_routing = [
        route("websocket.receive", message_handler),
    ]

  • run server using python manage.py runserver and then try to connect to server using  ws.connect("ws://localhost:8000/")
I am getting the following error
websocket._exceptions.WebSocketBadStatusException: Handshake status 200

What can be the reason for this error and how can it be rectified?


Maitreya Verma

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Dec 7, 2017, 3:15:29 AM12/7/17
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I am using Django 2.0, django-channels 0.7.0, asgi-redis 1.4.3

Andrew Godwin

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Dec 7, 2017, 3:17:12 AM12/7/17
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That error means you are not actually running a websocket-capable server. Did you add "channels" to INSTALLED_APPS?

Andrew

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Maitreya Verma

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Dec 7, 2017, 11:52:58 PM12/7/17
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Yes it worked. I had not installed channels and not added it to INSTALLED_CHANNELS as well. Thanks Andrew!



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