Serverless webRTC using firebase's realtime database as a signaling broker.

Install

npm install --save fire-rtc firebase

Demo

fire-rtc-chat

Usage

All the steps below needs to be executed on both sides, but the initiator value is different!

initialize a firebase app

import firebase from 'firebase';

firebase.initializeApp({
  apiKey: 'XXXXXXXXXXXXXXXXXXX', 
  databaseURL: 'XXXXXXXXXXXXXXXXX', 
  projectId: 'XXXXXXXXXXXXXXXXXX'
});

after that create a new fireRTC instance and pass the firebase instance

import createFireRTC from 'fire-rtc';

const fireRTC = createFireRTC({
      firebase, // pass the firebase instance
      id: 'my first serverless webrtc connection', // choose randomly and share with other party
      initiator: true, // the other party needs to set this to false and join afterwards!
      onConnect: handleConnect, // gets called when the connection is established
      onData: handleData, // gets called each time a new message arrives
    });

function handleConnect(){
  fireRTC.send('hello!');
}

function handleData(data){
  console.log('new message', data);
}

How does this work?

• both sdps are written to the database when creating a fireRTC instance.
• Both of you get notified of the others sdp config via the realtime db firebase event.
• After both parties have the other's sdp config, the webRTC connection can be established.
• The sdps are deleted because they are not needed anymore

https://webrtcglossary.com/sdp/

https://firebase.google.com/docs/database/web/read-and-write#basic_write

https://firebase.google.com/docs/database/web/read-and-write#listen_for_value_events