Nest: Websocket example doesn't work

[andrewbents]

I'm submitting a...

[ ] Regression 
[ ] Bug report
[ ] Feature request
[x] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

Websocket example doesn't work

Minimal reproduction of the problem with instructions

I cloned master, installed example 02 dependencies and ran it. When I open ws.html, it says WebSocket connection to 'ws://localhost:81/' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED. Looking at the code, the port should be the default (3000), not 81. If I change it to localhost:3000 it still doesn't work but the error is now ws.html:4 WebSocket connection to 'ws://localhost:3000/' failed: Connection closed before receiving a handshake response

Environment

Nest version: 4.5.8 (master)


For Tooling issues:
- Node version: 6.11.1  
- Platform:  MacOS 10.12.6 

Others:

[kamilmysliwiec]

Hi @andrewbents,
Fixed, let's try now.

[andrewbents]

@kamilmysliwiec
the client in index.html kind of works, but not in ws.html using plain websockets. You also forgot to change the port there, but If I set it to 3000 it still says Connection closed before receiving a handshake response. Am I missing something?

[kamilmysliwiec]

To use ws.html you need to set up a ws adapter (it'll force Nest to use ws instead of socket.io). Full path /src/common/adapters/ws-adapter.ts, tutorial https://docs.nestjs.com/websockets/adapter

[andrewbents]

@kamilmysliwiec still doesn't work. I use this adapter (app.useWebSocketAdapter(new WsAdapter());) and the error is the same

[fengcen]

I have the same problem.

[fengcen]

@kamilmysliwiec Can you try the ws example?

[vologab]

@fengcen You should also define port there - https://github.com/nestjs/nest/blob/master/examples/02-gateways/src/events/events.gateway.ts#L12
@WebSocketGateway({ port: 3001})

[fengcen]

@vologab Can I use the same port for http and websocket ?

[groovybytes]

not working for me either

[groovybytes]

why is it closed?

[pixartist]

Still does not work for me

[yoiang]

As mentioned by @kamilmysliwiec this fixed it for me:

import { NestFactory } from '@nestjs/core'
import { WsAdapter } from '@nestjs/platform-ws' // <---
import { AppModule } from './app.module'

async function bootstrap() {
  const app = await NestFactory.create(AppModule)
  app.useWebSocketAdapter(new WsAdapter(app)) // <---
  await app.listen(3000)
}
bootstrap()

I did not find it necessary to specify a unique port in the WebSocket Gateway definition

[lock[bot]]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.