datachannel.io v0.0.15

DataChannel.IO

Datachannel.io is inspired by the amazing socket.io framework and implements a real-time communication using the WebRTC technology. Peers are directly connected and datas are exchanged between clients without passing throug the server.

Socket.io is only used to serve signals between clients. You can choose the namespace where socket.io server his signals.

Installing

npm install datachannel.io

Using with Node HTTP server

On the Server

var app = require('http').createServer(handler)
  , io = require('datachannel.io').listen(app, 'dataChannel');

app.listen(80);

function handler (req, res) {
  fs.readFile(__dirname + '/index.html',
  function (err, data) {
    if (err) {
      res.writeHead(500);
      return res.end('Error loading index.html');
    }
    res.writeHead(200);
    res.end(data);
  });
}

On the Client

var datachannel = new DataChannel({
	socketServer: 'http://<yourIP>',
	rtcServers: null,
	nameSpace: 'dataChannel'
});

Using with the Express 3 web framework

On the Server

var app = require('express')()
  , server = require('http').createServer(app)
  , dc = require('datachannel.io').listen(server, 'dataChannel');

app.listen(80);

function handler (req, res) {
  fs.readFile(__dirname + '/index.html',
  function (err, data) {
    if (err) {
      res.writeHead(500);
      return res.end('Error loading index.html');
    }
    res.writeHead(200);
    res.end(data);
  });
}

On the Client

var datachannel = new DataChannel({
	socketServer: 'http://<yourIP>',
	rtcServers: null,
	nameSpace: 'dataChannel'
});

Join a Room (from the client)

datachannel.join("room");

Leave a Room (from the client)

datachannel.leave("room");

Send a Message

datachannel.in("room").emit("chat", {text: 'Hi!'});

ToDo

• Test on Firefox
• Implement e relay layer: in case peer-to-peer communication fails, socket.io serve the data message

Examples

Some examples at:

https://github.com/marcolanaro/DataChannel.IO-Examples

Tested on Chrome Canary