A single function within the FastAPI framework can indeed be associated with, or mapped to, multiple distinct routes. This capability allows for the execution of the same code logic in response to various URL patterns or HTTP methods. For example, a single function could handle both `GET` and `POST` requests for the same endpoint, or respond to requests directed at `/items/{item_id}` and `/products/{product_id}` if the underlying logic is applicable to both resources.
The ability to map one function to multiple routes provides several advantages. It promotes code reusability, reducing redundancy and simplifying application maintenance. By centralizing the handling of similar requests within a single function, developers can ensure consistency in processing logic and minimize the risk of errors. Furthermore, this feature contributes to a more organized and maintainable codebase, streamlining development workflows. Historically, web frameworks have offered different levels of support for this, with FastAPI providing a particularly clean and Pythonic approach.
