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Create Video Chat App using Node.js

Posted on December 5, 2021December 5, 2021 By christo No Comments on Create Video Chat App using Node.js

If you’re looking to create Video chat app using node.js. then here is the complete script to make Video chat App

Table of Contents

  • server.js
  • script.js
  • room.ejs
  • For more Information you can watch this video

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')

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

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) => {
    console.log(roomId +"/"+ userId +"wowowowow")
    socket.join(roomId)
    console.log(roomId + userId)
   // socket.to(roomId).broadcast.emit('user-connected', userId)
   socket.broadcast.to(roomId).emit('user-connected', userId)

    socket.on('disconnect', () => {
     // socket.to(roomId).broadcast.emit('user-disconnected', userId)
      socket.broadcast.to(roomId).emit('user-disconnected', userId)
    })
  })
})

server.listen(3000)

script.js

const socket = io('/')
const videoGrid = document.getElementById('video-grid')
const myPeer = new Peer(undefined, { host: "peerjs-server.herokuapp.com", secure: true, port: 443, });
const myVideo = document.createElement('video')
myVideo.muted = true
const peers = {}
navigator.mediaDevices.getUserMedia({
  video: true,
  audio: true
}).then(stream => {
  addVideoStream(myVideo, stream)

  myPeer.on('call', call => {
    call.answer(stream)
    const video = document.createElement('video')
    call.on('stream', userVideoStream => {
      addVideoStream(video, userVideoStream)
    })
  })

  socket.on('user-connected', userId => {
    connectToNewUser(userId, stream)
  })
})

socket.on('user-disconnected', userId => {
  if (peers[userId]) peers[userId].close()
})

myPeer.on('open', id => {
  socket.emit('join-room', ROOM_ID, id)
})

function connectToNewUser(userId, stream) {
  const call = myPeer.call(userId, stream)
  const video = document.createElement('video')
  call.on('stream', userVideoStream => {
    addVideoStream(video, userVideoStream)
  })
  call.on('close', () => {
    video.remove()
  })

  peers[userId] = call
}

function addVideoStream(video, stream) {
  video.srcObject = stream
  video.addEventListener('loadedmetadata', () => {
    video.play()
  })
  videoGrid.append(video)
}

room.ejs

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <script>
    const ROOM_ID = "<%= roomId %>"
  </script>
  <script defer src="https://unpkg.com/peerjs@1.2.0/dist/peerjs.min.js"></script>
  <script src="/socket.io/socket.io.js" defer></script>
  <script src="script.js" defer></script>
  <title>Document</title>
  <style>
    #video-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, 300px);
      grid-auto-rows: 300px;
    }
    
    video {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
  </style>
</head>
<body>
  <div id="video-grid"></div>
</body>
</html>

For more Information you can watch this video

Node.js Tags:Create Video Chat App using Node.js, Node.js

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