How do I setup a SSL certificate for an express.js server?

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

Try with the below solution

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);

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