const WebSocketServer = require('ws').WebSocketServer async function register ({ registerWebSocketRoute }) { const wss = new WebSocketServer({ noServer: true }) wss.on('connection', function connection(ws) { ws.on('message', function message(data) { if (data.toString() === 'ping') { ws.send('pong') } }) }) registerWebSocketRoute({ route: '/toto', handler: (request, socket, head) => { wss.handleUpgrade(request, socket, head, ws => { wss.emit('connection', ws, request) }) } }) } async function unregister () { return } module.exports = { register, unregister } // ###########################################################################