Validate an App Store receipt

- [Narrator] To validate a receipt data locally,…I'm going to make use of RMStore,…the open source package that I bundled with our project.…In particular, we're going to make use of RMStore…app receipt verifier.…And as a reminder,…if you're following along with your own project file…and not using the bundled exercise files,…if you're going to use RMStore,…you need to statically link the open SSL libraries…or else your app won't properly build.…Also, since RMStore is an Objective-C project,…you should have recreated a bridging header…upon importing this code.…

Now, let's go over here in IAP manager…and scroll down to the bottom of the class.…Here, I want to create a function called validate receipt.…In this function,…the first thing that I want to do is initialize my RMStore…app receipt verifier.…Our verifier has a method called verify app receipt…which returns a Boolean.…This method will grab our app receipt,…decrypt it and validate as to whether or not…our receipt is good.…

So let's go ahead and check that.…So handling our if clause,…