Does Hono support WebSocket in deno?

[yusukebe]

Does Hono support WebSockt in deno?

[yusukebe]

Yes, you can write like this:

app.get('/ws/', (c) => {
  const { response, socket } = Deno.upgradeWebSocket(c.req)
  socket.addEventListener('message', (e) => console.log(e))
  return response
})

This is a good article:

• DenoのWebSocketサーバーの書き方 2022冬編 - Qiita

[erf]

Is there a way to do this in Bun as well ?

[erf]

I was able to upgrade to WebSocket using the following:

app.get('/ws', (c) => {
  console.log(c)
  const success = c.env.upgrade(c.req.raw)
  return true
})

See https://bun.sh/guides/websocket/upgrade

However it was needed to return true and not undefined as per docs.

Also i would like a way to listen to the various WebSocket messges inside the ws router, and not in the Bun.serve callbacks.