MacOS In-App Purchases

Question

I cannot find the documentation regarding the code to do In-App purchases for MacOS Apps (not iOS). The official link (https://developer.apple.com/appstore/mac/resources/in-app-purchase/) does not say anything about the coding part of the process.

Answer 1

Check out the In-App Purchase Programming Guide and this Technical Note: they cover both platforms (MacOS and iOS) and gives sample code.