Validating in-app purchases in your iOS app Posted by hasseg on Wednesday February 11, 2015 @07:23AM from the futurice.com dept. http://futurice.com/blog/validating-in-app-purchases-in-your-ios-app ( 2 comments | 11 points | on HN )
[0] https://developer.apple.com/videos/wwdc/2014/
However, a lot of work has already been done by other developers and it's wise to reuse something such as CargoBay https://github.com/mattt/CargoBay.