spectacle-sync

💁 Present Spectacle presentations synchronised on multiple devices.

• You create a new session and share the token with your audience
• Your viewers open the presentation and join the session
• All viewers' browsers will connect to yours via WebRTC
• Proceed to give the most stylish presentation imaginable 🕶

You don't even need to start up another server! A signal server is already predeployed and WebRTC works P2P ✨

Demo

Getting Started

If you haven't set up your presentation you can use create-react-app to get started:

create-react-app my-presentation --scripts-version spectacle-scripts

Once you have your presentation, just install spectacle-sync from npm:

yarn add spectacle-sync

To add it to your presentation, all you need to do is to replace Spectacle's <Deck> with Spectacle Sync's <NetworkDeck>:

import React, { Component } from 'react';
import { Slide } from 'spectacle';

// Use this Deck instead of spectacle's:
import { NetworkDeck } from 'spectacle-sync';

export default class Presentation extends Component {
  render() {
    return (
      <NetworkDeck>
        <Slide>
          // ...
        </Slide>
      </NetworkDeck>
    );
  }
}

Then just start your app as usual and you will be greeted by the connection manager. There you can either enter a token that you've been given and join an existing session, or create a new one, which will generate a new token for you to share.

After you close the connection manager by clicking anywhere, you will find a small indicator on the bottom left, informing you of the status of the WebRTC connection(s).

How it works

When establishing a session a WebSocket connection is opened which by default connects to https://spectacle-signalling.now.sh. This server takes care of registering sessions and clients, and established the WebRTC peer to peer connections.

All of the viewers' browsers connect to the presenter's browser, which then proceeds to send Spectacle's local storage changes over the connection. Nice!

The signalling server is in this same repo under server/ and you can start your own if you want.

API

The only exposed component is the NetworkDeck component which accepts the following props additionally to the standad Spectacle Deck's props: