How to use routes from Express for HTTPS?
Using the API docs for .listen on my own projects with similar need, and looking at your code, I think two quick changes should work:
1) add var http = require('http'); to the top with your other requires.
2) change the last two lines of the app to:
// START THE SERVER// =============================================================================http.createServer(app).listen(port);https.createServer(credentials, app).listen(443);(If this works, you can also remove the reference to httpsServer.)
Truthfully, unless you have a very good reason not to I'd look at putting either a web server (NGINX) in front of your node app or a load balancer.
This helps in a number of ways, not the least of which being that you can terminate the HTTPS request there and let your node app not care.