peerjs-server

Server for PeerJS

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PeerServer: A server for PeerJS

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

Run your own server on Gitpod!

Open in Gitpod

https://peerjs.com

Run PeerServer

  1. Install PeerServer from npm or github:

NPM

npm install peer

github

git clone https://github.com/peers/peerjs-server.git#master
npm install
  1. Run the server:
$> peerjs --port 9000 --key peerjs --path /myapp

Or, create a custom server:

const { PeerServer } = require('peer');
const server = PeerServer({port: 9000, path: '/myapp'});
  1. Check that server works: open browser with http://localhost:9000/myapp It should returns JSON with name, description and website fields.

Connecting to the server from PeerJS:

<script>
    const peer = new Peer('someid', {host: 'localhost', port: 9000, path: '/myapp'});
</script>

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

const fs = require('fs');
const { PeerServer } = require('peer');

const 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.

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

Combining with existing express app

const express = require('express');
const app = express();
const { ExpressPeerServer } = require('peer');

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

// =======

const server = app.listen(9000);

const options = {
    debug: true
}

const peerserver = ExpressPeerServer(server, options);

app.use('/api', peerserver);

// == OR ==

const server = require('http').createServer(app);
const peerserver = ExpressPeerServer(server, options);

app.use('/peerjs', peerserver);

server.listen(9000);

// ========

Events

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

peerserver.on('connection', (client) => { ... });

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

peerserver.on('disconnect', (client) => { ... });

Running tests

npm test

Docker

You can build this image simply by calling:

docker build -t peerjs https://github.com/peers/peerjs-server.git

To run the image execute this:

docker run -p 9000:9000 -d peerjs

This will start a peerjs server on port 9000 exposed on port 9000.

Problems?

Discuss PeerJS on our Telegram chat:
https://t.me/joinchat/ENhPuhTvhm8WlIxTjQf7Og

Please post any bugs as a Github issue.

Main metrics

Overview
Name With Ownerpeers/peerjs-server
Primary LanguageTypeScript
Program languageJavaScript (Language Count: 3)
Platform
License:MIT License
所有者活动
Created At2013-01-05 06:49:08
Pushed At2025-07-01 17:55:37
Last Commit At2025-07-01 11:57:11
Release Count30
Last Release Namev1.1.0-rc.2 (Posted on )
First Release Name0.1.2 (Posted on )
用户参与
Stargazers Count4.6k
Watchers Count137
Fork Count1.1k
Commits Count0.9k
Has Issues Enabled
Issues Count232
Issue Open Count36
Pull Requests Count133
Pull Requests Open Count8
Pull Requests Close Count60
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