How to Create a Video Conferencing App with HTML and JavaScript?

Estimated read time 2 min read

Creating a video conferencing app using HTML and JavaScript involves setting up the user interface using HTML, and using JavaScript and a real-time communication API such as WebRTC (Web Real-Time Communication) to handle the audio and video communication between users. Here’s an example of how you can create a basic video conferencing app:

HTML:

<div id="video-conferencing-app">
  <div id="local-video-container"></div>
  <div id="remote-video-container"></div>
</div>

JavaScript:

const localVideoContainer = document.querySelector("#local-video-container");
const remoteVideoContainer = document.querySelector("#remote-video-container");

navigator.mediaDevices
  .getUserMedia({
    video: true,
    audio: true
  })
  .then((stream) => {
    const localVideo = document.createElement("video");
    localVideo.srcObject = stream;
    localVideo.autoplay = true;
    localVideo.muted = true;
    localVideoContainer.appendChild(localVideo);
    
    const peerConnection = new RTCPeerConnection();
    peerConnection.addStream(stream);
    
    peerConnection.onicecandidate = (event) => {
      if (event.candidate) {
        // Send the ICE candidate to the remote peer
      }
    };
    
    peerConnection.ontrack = (event) => {
      const remoteVideo = document.createElement("video");
      remoteVideo.srcObject = event.streams[0];
      remoteVideo.autoplay = true;
      remoteVideoContainer.appendChild(remoteVideo);
    };
    
    // Connect to the remote peer and set up the video conferencing
  });

In this example, we have a div with the id attribute set to “video-conferencing-app” that contains two elements: a div with the id attribute set to “local-video-container” to display the local video, and a div with the id attribute set to “remote-video-container” to display the remote video. We use the querySelector method to select the localVideoContainer and remoteVideoContainer elements.

We use the navigator.mediaDevices.getUserMedia method to request access to the user’s camera and microphone. If the request is granted, we create a new video element to display the local video, and set its srcObject attribute to the stream obtained from the user’s camera and microphone. We also set the autoplay attribute to true and the muted attribute to true to play the video automatically and mute the audio.

Next, we create a new instance of the RTCPeerConnection object, which is the API for setting up peer-to-peer connections for real-time communication. We add the local video stream obtained from the user’s camera and microphone to the peer connection using the addStream method.

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