Cannot subscribe to channel through Realtime: WebSocketChannelException: WebSocket connection failed
- 1
- Flutter
- Realtime
Hello, I am trying to subscribe to a channel using Realtime in my flutter app. I have the following code:
var sub = realtime.subscribe(
["databases.main.collections.teachers.documents"]);
And then have a function which simply calls sub.stream.listen to listen. When I launch the app, I only get the WebSocketChannelException and in the devtools console of my browser I get can’t establish a connection to the server... and that the websocket returned an error 400. I tried to look into the appwrite-realtime container logs and it simply listed Connection close: N over and over. I am pretty sure the realtime endpoint is correct and the collection has its collections permission currently set to allow anyone to read. But I still cannot figure out where is the problem.
Is this self-hosted?
yes
@hernik Are you using any proxy like Nginx, Plesk, Cloudflare....?
Currently my Appwrite is connected Appwrite -> Nginx -> Cloudflare
Maybe that's the issue. Did you have setup traefik to trust both proxys?
I think cloudflare should be ok, but I have no idea how to check if traefik trusts both proxies, do you happen to have some docs on how to check/set that please?
Added, restarted and still the same problem :(
Did you enable websockets in nginx?
Recommended threads
- Realtime not working for some tables
Hi, I've got an issue where I can setup a realtime connection to listen to some tables, but some not all. I have two tables `history` and `users`. Both can be ...
- SSR share session to client using custom...
Hi, so I was trying to get a hang of using SSR and using realtime updates in the same time which is done easiest if you have a custom domain in Appwrite and as ...
- Push Notification FCM Error
Hello dear people. I tried to integrate Push Notifications into my Flutter App. Everything works fine on Android/iOS Simulator + Testflight but as soon as I s...