Mastering REST APIs with FastAPI

With FastAPI you can build complete, high-performance APIs in days, and adding new features is blazing-fast. That’s why FastAPI has become so popular in recent years.

In this course, I’ll show you how to go from a blank slate to a complete, finished FastAPI application.

The project

We’ll build social media API with user authentication, email sending, and file upload. Users will be able to register and log in using Bearer (JWT) tokens. They will be able to create posts, leave comments, and like existing posts.

We’ll use Pydantic for data validation and encode/databases as our database connectivity library.

Advanced knowledge

Use background tasks in FastAPI to improve performance when running slow code, such as when sending emails (covered in the course) or when making slow requests to third party APIs (also covered).

Throughout the course we use an async database library, again to maximise performance, which is nonetheless straightforward to use. You’ll learn about the different types of data relationships and how to model them, including many-to-many relationships.

You’ll learn how to handle file uploads and what to do with the uploaded files, so you don’t run out of server space.

Complete API testing

Finally, 100% of the code in this course has tests. You’ll use pytest extensively to write integration and unit tests for the API. You’ll learn about pytest fixtures, parametrization, and testing conventions.

Part of real-world development means logging! There’s a lot of logging knowledge in this course, including how to set up the logging module properly, when to make logging calls, and where to store logs when your application is deployed.

Deployments

Of course, I’ll show you how to deploy your FastAPI app using popular service Render.  You can deploy your FastAPI app for free, but I’ll also show you some paid options for improved performance.

We’ll also look at application management, error handling with Sentry, and CI/CD with GitHub Actions.

If you use or want to use FastAPI, this course contains everything you need to develop complete, real-world APIs.

Let’s get started. I’ll see you on the inside!