transactionIdentifier String - A string that uniquely identifies a successful payment transaction.
transactionDate String - The date the transaction was added to the App Store’s payment queue.
originalTransactionIdentifier String - The identifier of the restored transaction by the App Store.
transactionState String - The transaction state, can be
errorCode Integer - The error code if an error occurred while processing the transaction.
errorMessage String - The error message if an error occurred while processing the transaction.
productIdentifier String - The identifier of the purchased product.
quantity Integer - The quantity purchased.