Previously Functioning System Encounters Websocket Connection Failure

Using Django Mystery Errors
1

Hello Everyone,

I am currently running a Django application within Docker, and I use websockets to connect to the dashboard app for metrics. While everything was functioning correctly when I checked last week, I encountered an issue yesterday where the service connects to the websocket but immediately disconnects.

2024-01-29 16:32:57  WebSocket HANDSHAKING /ws/dashboard/ [172.21.0.1:47114]
2024-01-29 16:32:57  WebSocket HANDSHAKING /ws/dashboard/ [172.21.0.1:47114]
2024-01-29 16:33:00  WebSocket DISCONNECT /ws/dashboard/ [172.21.0.1:47098]
2024-01-29 16:33:00  WebSocket DISCONNECT /ws/dashboard/ [172.21.0.1:47098]

ASGI

os.environ.setdefault("DJANGO_SETTINGS_MODULE",
                      "cartonprintingsystem.settings")

django_asgi_app = get_asgi_application()


application = ProtocolTypeRouter(
    {
        "http": django_asgi_app,
        "websocket": AllowedHostsOriginValidator(
            AuthMiddlewareStack(
                URLRouter(dashboard.routing.websocket_urlpatterns))
        ),
    }
)

Routing

from django.urls import re_path

from .consumers import DashboardConsumer

websocket_urlpatterns = [
    # re_path(r"ws/dashboard/(?P<room_name>\w+)/$", DashboardConsumer.as_asgi()),
    re_path(r"ws/dashboard", DashboardConsumer.as_asgi()),
]

I just want to know what is causing this issue and how can i resolve it.

2

Start with all the fundamentals here.

Look at all applicable log files for more information about what may be happening.

Look to see what may have changed in the environment - both inside and outside the application itself.

Look to see if there were any components upgraded.

Basically, treat this as any other system-level error. You need to gather as much information as possible from all available sources to try and identify the cause.

3

Yeah i followed the Chat tutorial(channels) in django from scratch and implemented again.
It is working.