Group Chat in Django?

Question

Django

Help make a group chat. I use Django Channels in my project. When you try to add a message, nothing is displayed and no error is written in the logs either. How to fix the situation?!
routing.py :

channel_routing = [
    route('websocket.connect', ws_connect, path=r'^account/dashboard/projects/(?P<project_code>[0-9a-f-]+)/chat/$'),
    route("websocket.receive", ws_receive),
    route("websocket.disconnect", ws_disconnect),
]

consumers.py :

# Connected to websocket.connect
@channel_session
def ws_connect(message):
    query = parse.parse_qs(message['query_string'])
    if 'username' not in query:
        return
    room = message.content['path'].strip("/")
    Group('chat-%s' % room).add(message.reply_channel)
    message.channel_session['room'] = room
    message.channel_session['username'] = query['username'][0]
    message.reply_channel.send({"accept": True})


# Connected to websocket.receive
@channel_session
def ws_receive(message):
    if 'username' not in message.channel_session:
        return
    Group('chat-%s' % message.channel_session['room']).send({
        'text': json.dumps({
            'message': message.content['text'],
            'username': message.channel_session['username']
        })
    })


# Connected to websocket.disconnect
@channel_session
def ws_disconnect(message):
    Group("chat-%s" % message.channel_session['room']).discard(message.reply_channel)

template :

{% block content %}
    <h1>{{ room.code }}</h1>
    <div id="msgArea"></div>

    <div>
        <textarea name="message" id="message" cols="30" rows="10"></textarea>
    </div>

    <button id="btnSubmit">Submit</button>
{% endblock content %}

{% block script %}
    <script>
        $(document).ready(function(){
            var msgArea = $('#msgArea')
            var elementMessage = $('#message')
            var webSocket = new WebSocket('ws://' + window.location.host + '/account/dashboard/projects/(?P<{{ room.project_id }}>[0-9a-f-]+)/chat/');
            webSocket.onmessage = function(message) {
                var data = JSON.parse(message.data)
                msgArea.append('<p><strong>'+ data.username + '</strong>: ' + data.message + '</p>')
            }
            $('#btnSubmit').click(function(e) {
                webSocket.send(elementMessage.val())
            })
        })
    </script>
{% endblock script %}