Chapter 3: Developing a RESTful API with FastAPI

Now it's time to begin learning about FastAPI! In this chapter, we'll cover the basics of FastAPI. We'll go through very simple and focused examples that will demonstrate the different features of FastAPI. Each example will lead to a working API endpoint that you'll be able to test yourself using HTTPie. In the final section of this chapter, we'll show you a more complex FastAPI project, with routes split across several files. It will give you an overview of how you can structure your own application.

By the end of this chapter, you'll know how to start a FastAPI application and how to write an API endpoint. You'll also be able to handle request data and build a response according to your own logic. Finally, you'll learn a way to structure a FastAPI project into several modules that will be easier to maintain and work with in the long term.

In this chapter, we'll cover the following...