server.js

const express = require('express');
const app = express();
const server = require('http').Server(app);
const io =require('socket.io')(server)
const { v4:uuidv4 } = require('uuid')
const { ExpressPeerServer } = require('peer')
const peerServer = ExpressPeerServer(server, {
    debug : true
});

app.set('view engine','ejs')
app.use(express.static('public'))

app.use('/peerjs',peerServer)
app.get('/',(req,res) => {
    res.redirect(`/${uuidv4()}`)
})



app.get('/:room',(req,res) => {
    res.render('room',{ roomId: req.params.room})
})
io.on('connection',socket => {
    socket.on('join-room',(roomId, userId) => {
        socket.join(roomId);
        // socket.to(roomId).broadcast.emit("user-connected",userId)
         //socket.to(roomId).emit('user-connected',userId)
        socket.broadcast.to(roomId).emit("user-connected",userId)
        socket.on('message', message =>{
            io.to(roomId).emit('createMessage', message)
        })
       
    })
})
//server.listen(3000);
server.listen(3000)