Summary

Well done! You’re now acquainted with all the basic features of FastAPI. Throughout this chapter, you learned how to create and run API endpoints where you can validate and retrieve data from all parts of an HTTP request: the path, the query, the parameters, the headers, and, of course, the body. You also learned how to tailor the HTTP response to your needs, whether it is a simple JSON response, an error, or a file to download. Finally, you looked at how to define separate API routers and include them in your main application to keep a clean and maintainable project structure.

You have enough knowledge now to start building your own API with FastAPI. In the next chapter, we’ll focus on Pydantic models. You now know that they are at the core of the data validation features of FastAPI, so it’s crucial to fully understand how they work and how to manipulate them efficiently.