I've seen a lot of posts around the internet about getting coordinates from an address, but none about how to do the opposite.
What I would like to do is allow a person to drop a pin and then programmatically look up the address closest to the pin. Like if I drop a pin inside a mall on the map I would like to capture the address to the mall.
Does anyone know how this could be done?
It's called "reverse geocoding". Try this quick tutorial on YT: https://www.youtube.com/watch?v=2wxE8byc2FQ
It's from 3 years ago, and for Swift 4.2 and Xcode 10, so it might be a little out of date, but I think it should still work as you need.
To add to @darkpaw point. You could use CLGeocoder for converting between geographic coordinates and place names.
Converting between coordinates and user-friendly place names should help you get started.