Need advice/guidance to Implement a virtual economy (In-App Purchasing)

So I want to implement an IAP for my iOS App. I have been reading articles and forum posts trying to figure things out for the last two weeks or so.

I have researched about Soomla but i find the documentation hard to follow and there is not many people who have experience with it.

I have found in past forum posts of people who have created the obj-c “binds”. My question is if I do that i just treat the IAP normally right? so i just call the iOS IAP functions through C++ and i would need to create the UI for the storefront and all the logic for IAP