JS2

const fs = require('fs');
const https = require('https');
const websocket = require('ws');

class Server {
    constructor(options) {
        console.log('[#] Initializing services on port %d...',  options.port);
        this.initHttpsServer(options);
        this.initWebsocketServer();
    }

    initHttpsServer(options) {
        this.httpServer = new https.createServer(options, function (request, response) {
            response.writeHead(200, {'Content-Type': 'text/html'});
            response.end();
        });
        this.httpServer.listen(options.port);
    }

    initWebsocketServer() {
        this.wsServer =  new websocket.Server(this.httpServer);
    }
}

const options = {
    port: 8080,
    key: fs.readFileSync('keys/key.pem', 'utf8'),
    cert: fs.readFileSync('keys/cert.pem', 'utf8'),
    passphrase: 'test123'
};
var server = new Server(options);