실시간 채팅 서버

실시간 채팅 서버

const { createServer } = require('http')
const { Server } = require('socket.io')
const httpServer = createServer(app)
const io = new Server(httpServer, { cors: { origin: '*' } })
io.on('connection', (socket) => {
  socket.on('join', room => socket.join(room))
  socket.on('message', ({ room, text }) => {
    io.to(room).emit('message', { text, from: socket.id })
  })
  socket.on('disconnect', () => console.log('User left'))
})
httpServer.listen(3000)