How FastAPI maps paths to methods?

[vovean]

I was going through the tutorial, the First Steps part.
When I got to the point where we declare a GET path with @app.get("/") I decided to look inside the app.get code. I expected to see several nested methods, as it usually happens when we create decorators. However, there is quite a simple code that (I believe) adds a GET record to the app's router.
Moreover, I have not seen any manipulations with the method which is decorated by @app.get("/").
So, now I am wondering, where exactly does the decorated method get assigned to the related path?

[tiangolo]

I assume you solved it and found the anser, thanks for closing the issue 👍