Django Channels - Class Based Consumers

Hi guys,

Been trying to get my head around this for ages now but still no luck, hopefully someone can point me in the right direction.

I'm trying to set up a Demultiplexer with a JsonWebsocketConsumer that sends to a group. (There is only one stream in the Demultiplexer at the moment, but I intend to add more).

The prints in each of the functions work when I interact with my app in the web browser, but I'm having trouble getting a response in the browser via websockets.

If I user multiplexer.send() then it works, but it only goes to a single connection (as you'd expect).

consumers.py

from channels.generic.websockets import JsonWebsocketConsumer, WebsocketDemultiplexer

class DatabaseUpdateConsumer(JsonWebsocketConsumer):
strict_ordering = True

def connection_groups(self, **kwargs):
return ["updatedb_results"]

def connect(self, message, multiplexer, **kwargs):
print "Connected!"
multiplexer.group_send(multiplexer.__class__.__name__, self.connection_groups(), {'text': "Connected!"})

def disconnect(self, message, multiplexer, **kwargs):
print("Stream %s is closed" % multiplexer.stream)

def receive(self, content, multiplexer, **kwargs):
print "Message received by server!"
multiplexer.group_send(multiplexer.__class__.__name__, self.connection_groups(), {'text': "Message received by server!"})

class Demultiplexer(WebsocketDemultiplexer):

consumers = {
"updatedb_results": DatabaseUpdateConsumer,
}

index.html

{% extends "base.html" %}

{% block title %}Test Dashboard{% endblock %}

{% block content %}
<div id="currentCount">{{ job_detail|length }}</div>
<br>
{% for line in job_detail %}
<div id="{{ line.id }}">{{ line.job_number }}</div>
{% endfor %}
{% endblock %}

{% block javascript %}
<script>
const webSocketBridge = new channels.WebSocketBridge();
webSocketBridge.connect("ws:/development01:8000/ws/");
webSocketBridge.listen();
webSocketBridge.demultiplex('updatedb_results', function(data, stream) {
console.log(data);
});
</script>
{% endblock %}

routing.py

from channels import route_class
from dashboard.consumers import Demultiplexer

channel_routing = [
route_class(Demultiplexer, path="^/ws/"),
]

Can anyone tell me where I'm going wrong?

Thanks,

Dan

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