> For the complete documentation index, see [llms.txt](https://book.restfulnode.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.restfulnode.com/part-3/chapter-8.md).

# Chapter 8: Adding Authentication to our API

Now it is time for something more complicated, you'll find that this chapter is going to be a lot more engaging than the last one. Because we are dealing with input fields now, our 8 step recipe is going to look a lot more involved than before.

Get ready, because this is going to be a long and exciting chapter!