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PeerServer: A server for PeerJS

PeerServer helps broker connections between PeerJS clients. Data is not proxied through the server.

##http://peerjs.com

If you prefer to use a cloud hosted PeerServer instead of running your own, sign up for a free API key here

Run PeerServer

Install the library:

$> npm install peer

Run the server:

$> peerjs --port 9000 --key peerjs

Or, create a custom server:

var PeerServer = require('peer').PeerServer;
var server = PeerServer({port: 9000, path: '/myapp'});

Connecting to the server from PeerJS:

<script>
    // No API key required when not using cloud server
    var peer = new Peer('someid', {host: 'localhost', port: 9000, path: '/myapp'});
</script>

Using HTTPS: Simply pass in PEM-encoded certificate and key.

var fs = require('fs');
var PeerServer = require('peer').PeerServer;

var server = PeerServer({
  port: 9000,
  ssl: {
    key: fs.readFileSync('/path/to/your/ssl/key/here.key'),
    cert: fs.readFileSync('/path/to/your/ssl/certificate/here.crt')
  }
});

Running PeerServer behind a reverse proxy

Make sure to set the proxied option, otherwise IP based limiting will fail. The option is passed verbatim to the expressjs trust proxy setting if it is truthy.

var PeerServer = require('peer').PeerServer;
var server = PeerServer({port: 9000, path: '/myapp', proxied: true});

Combining with existing express app

var express = require('express');
var app = express();
var ExpressPeerServer = require('peer').ExpressPeerServer;

app.get('/', function(req, res, next) { res.send('Hello world!'); });

var server = app.listen(9000);

var options = {
    debug: true
}

app.use('/api', ExpressPeerServer(server, options));

// OR

var server = require('http').createServer(app);

app.use('/peerjs', ExpressPeerServer(server, options));

server.listen(9000);

Events

The 'connection' event is emitted when a peer connects to the server.

server.on('connection', function(id) { ... });

The 'disconnect' event is emitted when a peer disconnects from the server or when the peer can no longer be reached.

server.on('disconnect', function(id) { ... });

Problems?

Discuss PeerJS on our Google Group: https://groups.google.com/forum/?fromgroups#!forum/peerjs

Please post any bugs as a Github issue.

README.md