> 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-9/summary.md).

# Summary

We've finally done it, we have finished implementing the Bookstore API, but wait, we're not done yet. To put forth our due diligence, we have to think long term and backup our codebase with tests.

In the next chapter, that's exactly what we'll be doing. We'll be diving deep into writing unit and integration tests for our API.