Able to use `upgradeWebSocket` like a stream

[nakasyou]

What is the feature you are proposing?

I think accepting using upgradeWebSocket like a stream is good. For example:

import { Hono } from 'hono'
import { upgradeWebSocket } from '.....'

const app = new Hono()

app.get('/ws', c => {
  return upgradeWebSocket(c, {
    onOpen () {
      console.log('opened!')
    }
  })
})

Because user can write more flexible code such as creating custom response in WebSocket route.

[Lucifer359-IV]

but why a right minded person will create custom response on this kind of thing

[nakasyou]

Hi @Lucifer359-IV, for example, you can do that

app.get('/ws', c => {
  if (!validToken(c.req.query('token'))) {
    return c.text('Unauthorized', 400)
  }
  return upgradeWebSocket(c, {
    onOpen () {
      console.log('opened!')
    }
  })
})

Also you can change the response with or without the upgrade header.

[JoaquimLey]

@nakasyou can't you do that token validation with a middleware?

Also have you checked the streaming helper section in the docs?

• https://hono.dev/docs/helpers/streaming