In this section, you'll make your very first Node.js web server, which means you'll have a whole new way for users to access your app. Instead of having them run it from the Terminal passing in arguments, you'll be able to give them a URL they can visit to view your web app or a URL they can make an HTTP request to to fetch some data.
This will be similar to what we did when we used the geocode API in the previous chapters. Instead of using an API though, we'll be able to create our own. We'll also be able to set up a static website for something like a portfolio site. Both are really valid use cases. Now all of this will be done using a library called Express, which is the most popular npm library. It's actually one of the reasons that Node got so popular because it was so easy to make REST APIs and static web servers.
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