For the past several months, I've been developing an app using Spotify Web API and Node. As it's nearing completion, I'm wondering how to host my app on a domain for others to use. So far, I've been running my authentication server on localhost:8888 using Node to test my app as instructed in the Spotify Web API guide. How would I go about authenticating users of my app on a real web page? This is my first time developing a web app using an API like this.