API Calls versus Active Passes
Did you know that redeeming a Passbook Pass normally takes at least 2 API calls? To retrieve the status of the Pass (e.g. to check that the coupon is valid, or to confirm the balance of a store card is
Did you know that redeeming a Passbook Pass normally takes at least 2 API calls? To retrieve the status of the Pass (e.g. to check that the coupon is valid, or to confirm the balance of a store card is