Django4, Post file (pdf) and get file (pdf)

Hello Everyone.

I’ve one application Django + react. And I don’t know what I can do to review documents.
For example, I want to submit the file “blabla.pdf” to the application, specifying “/doc/review/blabla.pdf” as the desired URL and after that, I want to submit other versions to update and the original version of the file can be accessed at the URL (“/doc/review/blabla.pdf?revision=0”).

Does anyone have one idea? I can submit and register the file normally but I can’t see this file in one Django route.

Thank you so much!