Backend App Development

I’m just learning app development for a personal project and I have no idea where to start in terms of servers. We’re currently using XCode for the frontend, Firebase for the database, and we want to use Python for most of the backend functionality. Our main issue is we don’t know how connect the frontend and the backend so that we can serve requests. I would appreciate any recommendations or directions on how to move forward.

why would you want to use python when you can already use Swift to connect and manipulate firebase data? you are just making it hard on yourself

I’m more familiar with Python and would prefer to keep most of the data manipulation separate from the frontend user.