This websocket server will broadcast all messages it receives to sockets connected to the same URL.
Client-side, you can connect with new WebSocket(url), or use the wrapper in public/connectable.js that will try to reconnect.
// Connect to `room-name`
const socket = connectable('ws://localhost:8080/room-name')
// Log all messages in `room-name`
socket.subscribe(console.log)
// Send a chat message
form.onsubmit = () => socket.send(nameInput.value)