[medium] django 3 websockets. middleware

middleware.py

from django.urls import resolve
from .connection import WebSocket

def websockets(app):
    async def asgi(scope, receive, send):
        if scope["type"] == "websocket":
            match = resolve(scope["raw_path"])
            await match.func(WebSocket(scope, receive, send), *match.args, **match.kwargs)
            return
        await app(scope, receive, send)
    return asgi

I am getting this issue here:
File "./mysite/asgi.py", line 13, in <module> from shop.middleware import websockets File "./shop/middleware.py", line 11 await app(scope, receive, send) ^ SyntaxError: 'await' outside async function

If I try and indent await app... and return asgi one level, I get: File "/usr/src/app/env/lib/python3.7/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__ return await self.app(scope, receive, send) File "./shop/middleware.py", line 11, in asgi await app(scope, receive, send) File "/usr/src/app/env/lib/python3.7/site-packages/django/core/handlers/asgi.py", line 161, in __call__ response = await self.get_response_async(request) File "/usr/src/app/env/lib/python3.7/site-packages/django/core/handlers/base.py", line 148, in get_response_async response = await self._middleware_chain(request) TypeError: object HttpResponse can't be used in 'await' expression

Ooops, my bad. The def websocket has to be async def websocket

That still doesnt work, because you are trying to call a coroutine in asgi.py

I've tried these things in asgi.py and still cannot get it to work:

from django.core.asgi import get_asgi_application
from shop.middleware import websockets
import asyncio

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')

application = get_asgi_application()
# loop = asyncio.get_event_loop()
# application = asyncio.ensure_future(websockets(application))
application = await websockets(application)
# application = asyncio.run(websockets(application))
# application = websockets(application)

Also in middleware.py the return asgi is on the same level as the function definition. It is kind of ambiguous to me what indentation needs to be fixed. Should return asgi be indented in addition to await app(scope, receive, send) or just the return?

Try now

ERROR: Exception in ASGI application Traceback (most recent call last): File "/usr/src/app/env/lib/python3.7/site-packages/uvicorn/protocols/http/httptools_impl.py", line 390, in run_asgi result = await app(self.scope, self.receive, self.send) File "/usr/src/app/env/lib/python3.7/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__ return await self.app(scope, receive, send) File "./shop/middleware.py", line 21, in asgi await app(scope, receive, send) File "/usr/src/app/env/lib/python3.7/site-packages/django/core/handlers/asgi.py", line 161, in __call__ response = await self.get_response_async(request) File "/usr/src/app/env/lib/python3.7/site-packages/django/core/handlers/base.py", line 148, in get_response_async response = await self._middleware_chain(request) TypeError: object HttpResponse can't be used in 'await' expression Exception in ASGI application Traceback (most recent call last): File "/usr/src/app/env/lib/python3.7/site-packages/uvicorn/protocols/http/httptools_impl.py", line 390, in run_asgi result = await app(self.scope, self.receive, self.send) File "/usr/src/app/env/lib/python3.7/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__ return await self.app(scope, receive, send) File "./shop/middleware.py", line 21, in asgi await app(scope, receive, send) File "/usr/src/app/env/lib/python3.7/site-packages/django/core/handlers/asgi.py", line 161, in __call__ response = await self.get_response_async(request) File "/usr/src/app/env/lib/python3.7/site-packages/django/core/handlers/base.py", line 148, in get_response_async response = await self._middleware_chain(request) TypeError: object HttpResponse can't be used in 'await' expression INFO: - "GET /favicon.ico HTTP/1.0" 500 Internal Server Error