peer

@rtco/peer

Artico peer library. Please refer to the documentation for more information.

Installation

npm install @rtco/peer

Usage

The following example show how to connect two peers and share audio/video or any data between them:

import Peer from "@rtco/peer";

const p1 = new Peer({ initiator: true });
const p2 = new Peer();

p1.on("signal", (data) => {
  // signal p2 somehow
  p2.signal(data);
});

p2.on("signal", (data) => {
  // signal p1 somehow
  p1.signal(data);
});

p1.on("connect", () => {
  // data channel is connected and ready to be used
  p1.send("Hey Peer 2, this is Peer 1!");
});

p2.on("data", (data) => {
  console.log("Received a message from Peer 1:", data);
});

p2.on("stream", (stream) => {
  console.log("Received new stream from Peer 1:", stream);
});

p1.on("replacetrack", (oldTrack, newTrack) => {
  console.log("Track replaced:", oldTrack.id, "->", newTrack.id);
});

// ...

navigator.mediaDevices
  .getUserMedia({
    video: true,
    audio: true,
  })
  .then((stream) => {
    // send stream to Peer 2
    p1.addStream(stream);

    // Example: Replace video track (e.g., switch camera)
    navigator.mediaDevices
      .getUserMedia({ video: { facingMode: "environment" }, audio: false })
      .then((newStream) => {
        const oldVideoTrack = stream.getVideoTracks()[0];
        const newVideoTrack = newStream.getVideoTracks()[0];

        // Replace the track
        p1.replaceTrack(oldVideoTrack, newVideoTrack);

        // Stop the old track
        oldVideoTrack.stop();
      })
      .catch(console.error);
  })
  .catch(console.error);