Adding Database Backed User Authentication to FastAPI

So you’re excited about FastAPI and you’ve been following the excellent documentation. At some point, you’ll come to the section on security which sets you up with a login view, some utilities for hashing passwords and a dependency injected current user object.

It works great! The only problem is now you are left with a working application, but your user database consists of a hardcoded dictionary. Obviously, this will not do for a real application.

In this tutorial, we will replace our fake users database dictionary with a real database backed user table. In the next part, we’ll add a registration endpoint so that people can sign up for accounts and login to your application.