server.js

const express = require("express");
const app = express();
const server = require("http").Server(app);
const $ = require( "jquery" );
const { v4: uuid } = require("uuid");
const io = require("socket.io")(server);
const { ExpressPeerServer } = require("peer");
const port = 3030;
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(`/${uuid()}`);
});

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).emit("user-connected", userId);
    socket.on('message', message =>{
      io.to(roomId).emit('createMessage', message);
    })

  });
});

server.listen(process.env.PORT || port, ()=> console.log(`Listening on port ${port}`));