Question

Before, in an older version of express, I could do this:

express.createServer({key:'keyFile', cert:'certFile'});

However, in newer versions of express this no longer works:

var app = express();

Should I call app.use() to set the certs? If so how?

Answer 1

See the Express docs as well as the Node docs for https.createServer (which is what express recommends to use):

var privateKey = fs.readFileSync( 'privatekey.pem' );
var certificate = fs.readFileSync( 'certificate.pem' );

https.createServer({
    key: privateKey,
    cert: certificate
}, app).listen(port);

Other options for createServer are at: http://nodejs.org/api/tls.html#tls_tls_createserver_options_secureconnectionlistener