Book Image

Apple Pay Essentials

By : Ernest Bruce
Book Image

Apple Pay Essentials

By: Ernest Bruce

Overview of this book

Apple Pay, one of the most talked about offerings of the latest iOS 9 release, is a digital wallet and electronic payment system developed by Apple Inc. Paying in stores or within apps has never been easier or safer. Gone are the days of searching for your wallet, and the wasted moments finding the right card! Now you can use your credit cards and rewards cards with just a touch. It allows payment to merchants, using Near field Communication (NFC), and within iOS apps. Implementing Apple Pay within apps for payment is a bit tricky, but our book solves this problem for you. Whether you are a brand new iOS app developer or a seasoned expert, this book arms you with necessary skills to successfully implement Apple Pay in your online-payment workflow. Whether you are a brand new iOS app developer or a seasoned expert, this book arms you with the necessary skills to successfully implement Apple Pay. We start off by teaching you how to obtain the certificates necessary to encrypt customers’ payment information. We will use Xcode and Objective C for the interface and Node.js for server side code. You will then learn how to determine whether the customer can use Apple Pay, and how to create payment requests. You will come to grips with designing a payment-processor program to interact with the payment gateway. Finally, we take a look at a business-focused view of Apple Pay protocols and classes. By the end of this book, you will be able to build a fully functional Apple Pay-integrated iOS app
Table of Contents (13 chapters)

Actors and operations in the processing workflow


The payment processing workflow is the process by which the payment information generated by Apple Pay, from the payment request and the information the user entered into the payment sheet, is transmitted to your payment gateway and the card's issuing bank in order to charge the card and make the payment's funds available in your acquiring bank.

The workflow starts when the payment sheet calls the paymentAuthorizationViewController:didAuthorizePayment:completion: delegate method, providing the user app with the general order information (such as the shipping and billing information) and a payment token containing the encrypted payment data.

This diagram depicts the actors, operations, and data that are part of the payment processing workflow:

These are the operations and data that are part of the workflow:

  • payment authorized: The payment sheet tells the app that the user authorized the payment

  • payment token: The app provides the payment token...