Express to Https

express2https.txt

Exec in terminal
sudo certbot --authenticator webroot --webroot-path <path-to-webroot> --installer apache -d <your-domain>
sudo certbot certonly --webroot --webroot-path= <path-to-webroot> -d <your-domain>

var https = require('https');
var sslOptions = {
    key: fs.readFileSync('key.pem'),
    cert: fs.readFileSync('cert.pem'),
};
https.createServer(sslOptions, app).listen(3000);