[QUESTION] A way to handle multiple request content types

OpenAPI allows describing multiple accepted content-types for a request. Is it possible via FastAPI means?

I’d like to make a password login endpoint accepting both application/json and application/x-www-form-urlencoded using a single handler.

[tiangolo]

Thanks for the help here everyone! 🚀

Yeah, the way to support different content types on the same path operation would be to read the request directly and parse it depending on the content type.

But then you have to do the data validation and documentation in OpenAPI yourself, in your code.

There wouldn’t be an easy way to do it more automatically based on type annotations as the body has to be consumed from the ASGI messages, and it would be a different process for each media type.

What I would try to do is to have a different path for each media type, that way I can enforce validation for the JSON or form data while reading the content directly for other complex types.

[Sharathmk99]

@evstratbg there is no limitations like that in http protocol. I have implemented in other frameworks like flask, spring, etc… OpenAPI spec also supports multiple content type for one endpoint.