Why adding custom_openapi scema to FastAPI is causing the authorisation not to work?

I have this FastAPI app working in the main.py:

Why adding custom_openapi scema to FastAPI is causing the authorisation not to work?

I have this FastAPI app working in the main.py:

Why adding custom_openapi scema to FastAPI is causing the authorisation not to work?

I have this FastAPI app working in the main.py:

Why adding custom_openapi scema to FastAPI is causing the authorisation not to work?

I have this FastAPI app working in the main.py:

Why adding custom_openapi scema to FastAPI is causing the authorisation not to work?

I have this FastAPI app working in the main.py:

Why adding custom_openapi scema to FastAPI is causing the authorisation not to work?

I have this FastAPI app working in the main.py:

Why adding custom_openapi scema to FastAPI is causing the authorisation not to work?

I have this FastAPI app working in the main.py:

Why adding custom_openapi scema to FastAPI is causing the authorisation not to work?

I have this FastAPI app working in the main.py:

Convert JavaScript code to Python using FastAPI

Here is the code I am trying to change to Python using FastAPI:

How to return plain text or JSON depending on condition?

Is there a way to do something like this using FastAPI: