iPhone - in-App purchase consumable correct approach

Question

I have this new app I am creating that will use consumable in-app purchases.

My question is this: how does that work? I mean, imagine the user buys a consumable stuf

Answer 1

StoreKit only provides recovery functionality for non-consumable items (and to some extend for subscriptions). So for consumable products, recovering using restoreCompletedTransactions will not deliver any transactions in your case. Any handling of restoring information about consumable products must be done within your app and/or server.

For reference of the various products' natures check the In App Purchase Programming Guide:Designing Your App’s Products. There are Consumable products which must be purchased each time, Non-consumable products purchased only once and provided to all devices associated with that user’s iTunes account, Auto-Renewable subscriptions and Non-Renewing Subscriptions