@webrtc-remote-control/core

@webrtc-remote-control/core

Imagine you could simply control a web page opened in a browser (master) from an other page in an other browser (remote), just like you would with a TV and a remote.

webrtc-remote-control lets you do that (based on PeerJS) and handles the disconnections / reconnections, providing a simple API.

Installation

npm install peerjs @webrtc-remote-control/core

This package is the core one. Implementations for popular frameworks such as react or vue are available here.

Usage

Add the peerjs library as a script tag in your html page. You'll have access to Peer constructor.

<script src="https://unpkg.com/peerjs@1.5.4/dist/peerjs.min.js"></script>

Direct link to the demo source code: master.js / remote.js

master

import prepare, { prepareUtils } from "@webrtc-remote-control/core/master";

async function init() {
  const { bindConnection, getPeerId, humanizeError } = prepare(prepareUtils());
  const peer = new Peer(getPeerId());
  peer.on("open", (peerId) => {
    // do something with this master peerId - create some url to open the browser based on it
  });

  const api = await bindConnection(peer);
  api.on("remote.connect", ({ id }) => {
    console.log(`Yay, remote ${id} just connected to master!`);
  });
  api.on("remote.disconnect", ({ id }) => {
    console.log(`Boo, remote ${id} just disconnected from master!`);
  });
  api.on("data", ({ id }, data) => {
    console.log(`Remote ${id} just sent the message`, data);
  });

  // send some data to the remotes
  api.sendAll({ msg: "Hello world to all remotes" });
  // api.sendTo(remoteId, { msg: "Hello world to a specific remote" });
}

remote

import prepare, { prepareUtils } from "@webrtc-remote-control/core/remote";

async function init() {
  const { bindConnection, getPeerId, humanizeError } = prepare(prepareUtils());
  const peer = new Peer(getPeerId());

  // connect to master with `masterPeerId` (passed via QRCode, url, email ...)
  const api = await bindConnection(peer, masterPeerId);
  api.on("remote.disconnect", ({ id }) => {
    console.log(`Boo, remote ${id} just disconnected from master!`);
  });
  api.on("remote.reconnect", ({ id }) => {
    console.log(`Yay, remote ${id} just reconnected to master!`);
  });
  api.on("data", (_, data) => {
    console.log("Master just sent this message", data);
  });

  // send some data
  api.send({ msg: "Hello master page" });
}

TypeScript

TypeScript types are shipped with the package.

UMD build

Don't want to use a bundler ? You can simply use the UMD (Universal Module Definition) build and drop it with a script tag from your favorite js cdn, you'll have access to a webrtcRemoteControl object on the window.

• Development build: https://unpkg.com/@webrtc-remote-control/core/dist/webrtc-remote-control.umd.dev.js
• Production build: https://unpkg.com/@webrtc-remote-control/core/dist/webrtc-remote-control.umd.prod.js