How to get Socket.io 2 to work with Koa 2?

How can I use socket.io with koa 2? I tried the following but does not work:

 import Koa from 'koa'
 import socket from 'socket.io'
 import http from 'http'
 
 const app = new Koa()
 
 // Basic.
 app.use(async ctx => {
   ctx.body = 'Hello World'
 })
 
 const server = http.createServer(app.callback())
 const io = new socket(server)
 
 io.on('connection', function(socket){
     console.log('a user connected')
 })
 
 server.listen(3000)

I don’t see 'a user connected' on my terminal.

Any ideas?

[hophuochoanggia]

@pengliheng const app = new Koa() var server = require(‘http’).createServer(app.callback()) var io = require(‘socket.io’)(server) server.listen(“your port”, “your host”)

Remeber to listen on “server” not “app”

[chanlito]

correction, @lautiamkok i tested your code, it works. I think we should close this issue.