ios7 - In iOS 7, how to extract the values of Receipt Fields from the In-App Purchase receipts? -


i know in ios 7, app's receipt , in-app purchase receipts combined encrypted format structure shown here, automatically written storage.

i know receipt(s) have fields, documented here.

i know how retrieve receipt combo calling appstorereceipturl.

i know how validate receipt passing apple servers either directly or via own server.

but how parse receipt extract fields?

i need kind of identifier each of possible in-app purchases record user's ownership in way can verify repeatedly later.

if send receipt apple validation, json structure receipt fields. asking how parse json structure?


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