I'm currently struggling to integrate reCAPTCHA v3 Enterprise with FastAPI-users.

My frontend is already sending the proper token in the FormData sent to the FastAPI backend, I also already have the logic implemented on the backend to check said token with the library google-cloud-recaptcha-enterprise, but I spent hours trying to inject my dependency to the routes generated by fastapi_users.get_auth_router(auth_backend), fastapi_users.get_register_router(UserRead, UserCreate) and others.

Since the routes are statically created, it's already too late to try to add the Depends after calling the get_*_router methods.
Currently, to make it work, I copy/pasted the code for each /login, /register, /forgot-password routes to inject my dependency, but that's dirty, prone to errors and not maintainable.

Did I miss something, either in fastapi-users or more generally on FastAPI ? Or is it something not possible in the current implementation of fastapi-users ? If so, is it possible to implement that feature ?