I recently wrote a python api for work and used FastAPI, I want to like it, but it was doing so much magic behind the scenes that it ended up being frustrating to use and just got in my way, ended up dropping it in favour of using Starlette directly
The way it tries to construct the return values kept getting in the way.
I’d define the class, add it as the return value, I was manually instantiating the class and returning that, but for it didn’t like that and would constantly throw errors about it. I think it was PyDantic which was the root cause there.
The Depends functionality refused to inject my classes as well, but I was probably doing something wrong there...
Dropping back to Starlette was good because it gave me everything I needed and got out of my way. I’ve still got everything fully typed and passing MyPy.
