Subscriptions WebSocket closes socket right after accepting request

[BerkliumBirb]

Do you want to request a feature or report a bug?

It's a Bug

What is the current behavior?

When I connect to server using wscat it just halts the socket and wscat reports "404". But is I try to send a simple http request (which is a part of ws handshake process) socket halts with no response:

root@32c3b8cb3c23:/# curl -vv http://localhost:8001/subgraphs/name/kittycatdao/zksync
* Expire in 0 ms for 6 (transfer 0x55896a3be0f0)
* Expire in 1 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 0 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 2 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 0 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 1 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 4 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 1 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 2 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 8 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 3 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 3 ms for 1 (transfer 0x55896a3be0f0)
* Expire in 4 ms for 1 (transfer 0x55896a3be0f0)
*   Trying 127.0.0.1...
* TCP_NODELAY set
* Expire in 149993 ms for 3 (transfer 0x55896a3be0f0)
* Expire in 200 ms for 4 (transfer 0x55896a3be0f0)
* Connected to localhost (127.0.0.1) port 8001 (#0)
> GET /subgraphs/name/dao/zksync HTTP/1.1
> Host: localhost:8001
> User-Agent: curl/7.64.0
> Accept: */*
> 
* Empty reply from server
* Connection #0 to host localhost left intact
curl: (52) Empty reply from server

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem.

• Deploy graph node in docker container
• Deploy subgraph
• Connect to node docker container using docker exec
• Install nodejs and curl
• run npx wscat -c ws://localhost:8001/subgraph/<deployed-subgraph> or curl http://localhost:8001/subrgaph/<deployed-subgraph>

What is the expected behavior?

Server send HTTP 101 Switch Protocols response at least.

[github-actions]

Looks like this issue has been open for 6 months with no activity. Is it still relevant? If not, please remember to close it.

[lutter]

Subscriptions are no longer supported