server.js

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

const peerServer = ExpressPeerServer(server, {
    debug: true
});

const PORT = process.env.PORT || 3030;
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.broadcast.to(roomId).emit('user-connected', userId);
            socket.on('message', (message,user) => {
                io.to(roomId).emit('createMessage',message,user)
            })
        })
        socket.on('participant',(roomId,user) =>{
            io.to(roomId).emit('createParticipant',user);
        })

    
})

server.listen(PORT,() =>{
    console.log(`Server is running on the port ${PORT}`);
});