Question

I have an application with a base controller, base html and base javascript file. In this three a create a token with unique client id (create_channel) and I pass the token to the template and create the connection in the javascript file.

Then I send a message to this connection. If I stay in the same page it works well and I see the message but if I go to other page the base.js is load again and new connection is started so I never see the message that I sent from the server.

Any idea how can I resolve this issue? I only want to create one connection but the base file is load more times…

Answer 1

Each “user” has to have an ID. I use the session ID. Then you create the token against that only if it does not already exist.

channel_token = self.session.get('channel_token')
    if channel_token is None: # if the session user does not have a channel token
        user_id = str(uuid.uuid4()).replace("-",'')
        channel_token = channel.create_channel(user_id)
        self.session['channel_token'] = channel_token
        self.session['user_id'] = user_id

So when you go to a different page you don’t create a new channel if one already is available for that user_Id. When the user navigates away you’ll get a disconnect/connect each time. And you can use the user_id to send the message regardless of what page they are on.