Have you ever wanted to get previously brought product data(in app purchase) from app store while developing iPhone applications ??? Well, I wanted once. The application contained several products. And we needed to get those product details in a case user moves to a new device or he has couple of devices (iPhone, iPad) having the same app.
The answer is as follows, first you need to use the function
– (void)restoreCompletedTransactions
in SKPaymentQueue class. But your products need to be configured as non-consumable in app store.
After the transactions are delivered, the payment queue calls the observer’s
– (void)paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue
method. If an error occurred while restoring
– (void)paymentQueue:(SKPaymentQueue *)queue restoreCompletedTransactionsFailedWithError:(NSError *)error
will be called.
After that you can check
@property(nonatomic, readonly) SKPaymentTransaction *originalTransaction
for each transaction and get the product id.