Implementation of the hyperswarm API for use in web browsers
npm i -s hyperswarm-web
// Based on example in hyperswarm repo
// Try running the regular hyperswarm demo with node
const hyperswarm = require('hyperswarm-web')
const crypto = require('crypto')
const swarm = hyperswarm({
// Specify a server list of HyperswarmServer instances
bootstrap: ['ws://yourhyperswarmserver.com'],
// You can also specify proxy and signal servers separated
wsProxy: [
'ws://proxy1.com',
'ws://proxy2.com'
],
webrtcBootstrap: [
'ws://signal1.com',
'ws://signal2.com'
],
// The configuration passed to the SimplePeer constructor
// See https://github.com/feross/simple-peer#peer--new-peeropts
// for more options
simplePeer: {
// The configuration passed to the RTCPeerConnection constructor, for more details see
// https://developer.mozilla.org/en-US/docs/Web/API/RTCPeerConnection/RTCPeerConnection#RTCConfiguration_dictionary
config: {
// List of STUN and TURN servers to connect
// Without the connection is limited to local peers
iceServers: require('./ice-servers.json')
}
},
// Maximum number of peers (optional)
// Used in both webrtc (default 5) and ws proxy config (default 24)
maxPeers: 10,
// Websocket reconnect delay in milliseconds (optional) (default 1000)
wsReconnectDelay: 5000
})
// look for peers listed under this topic
const topic = crypto.createHash('sha256')
.update('my-hyperswarm-topic')
.digest()
swarm.join(topic)
swarm.on('connection', (socket, details) => {
console.log('new connection!', details)
// you can now use the socket as a stream, eg:
// socket.pipe(hypercore.replicate()).pipe(socket)
})
swarm.on('disconnection', (socket, details) => {
console.log(details.peer.host, 'disconnected!')
console.log('now we have', swarm.peers.length, 'peers!')
})
Build it with Browserify to get it running on the web.
You could also compile an existing codebase relying on hyperswarm to run on the web by adding a browser
field set to {"hyperswarm": "hyperswarm-web"}
to have Browserify alias it when compiling dependencies.
HyperswarmServer
provides two services:
ws://yourserver/proxy
ws://yourserver/signal
Running a HyperswarmServer
will allows you to use both services in one single process.
npm i -g hyperswarm-web
# Run it! Default port is 4977 (HYPR on a phone pad)
hyperswarm-web
# Run it with a custom port
hyperswarm-web --port 42069
sudo cat << EOF > /etc/systemd/system/hyperswarm-web.service
[Unit]
Description=Hyperswarm proxy server which webpages can connect to.
[Service]
Type=simple
# Check that hyperswarm-web is present at this location
# If it's not, replace the path with its location
# You can get the location with 'whereis hyperswarm-web'
# Optionally add a --port parameter if you don't want 4977
ExecStart=/usr/local/bin/hyperswarm-web
Restart=always
[Install]
WantedBy=multi-user.target
EOF
sudo chmod 644 /etc/systemd/system/hyperswarm-web.service
sudo systemctl daemon-reload
sudo systemctl enable hyperswarm-web
sudo systemctl start hyperswarm-web
sudo systemctl status hyperswarm-web