Use granian instead of uvicorn (#344)

Author: mbertrand

ai_chatbots/consumers.py

@@ -299,6 +299,8 @@ async def create_checkpointer(
 
     async def handle(self, message: str):
         """Handle the incoming message and send the response."""
+        if not message:
+            return
         cookies = None
         try:
             await self.check_throttles()

config/nginx.conf.erb

@@ -51,20 +51,12 @@ http {
             return 204;
         }
 
-        location /ws {
-            proxy_pass http://web:8001;
-            proxy_http_version 1.1;
-            proxy_set_header Upgrade $http_upgrade;
-            proxy_set_header Connection $connection_upgrade;
-            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-            proxy_set_header Host $host;
-        }
-
 		location / {
 			proxy_pass http://web:8001;
 			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 			proxy_set_header Host $host;
 			proxy_redirect off;
+            proxy_buffering off;
 		}
 
     }

poetry.lock

@@ -70,7 +70,6 @@ social-auth-app-django = "^5.2.0"
 social-auth-core = {extras = ["openidconnect"], version = "^4.4.2"}
 starlette = "0.48.0"
 ulid-py = "^1.0.0"
-uvicorn = {extras = ["standard"], version = "^0.37.0"}
 granian = "^2.5.4"
 open-learning-ai-tutor = "^0.2.12"
 

pyproject.toml

@@ -13,7 +13,4 @@ python3 manage.py createcachetable
 # run ONLY data migrations
 RUN_DATA_MIGRATIONS=true python3 manage.py migrate --noinput
 
-uvicorn main.asgi:application --reload --host 0.0.0.0 --port 8001
-
-# production might best be run via a combo of gunicorn and uvicorn?
-#gunicorn main.asgi:application -k uvicorn.workers.UvicornWorker -b 0.0.0.0:8001 --workers 4 --threads 2
+granian --interface asgi --host 0.0.0.0 --port 8001 --reload main.asgi:application