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)

Chapter 6. Apple Pay API Summary

You process Apple Pay transactions in three phases:

  1. Preparation: Create a payment request and populate it with payment information and details about the product the user is purchasing.

  2. Payment sheet interaction: Respond to user interactions with the payment sheet (such as changes to the shipping address or the desired shipping method) through the methods of the PKPaymentAuthorizationViewControllerDelegate protocol.

  3. Payment processing: Process the Apple Pay transaction on the user's device and your own servers through the API provided by your payment gateway and HTTP requests to your order processing web app.

Earlier chapters showed the workflows you use to interact with the major actors in Apple Pay transactions. This chapter provides helpful information on the classes, methods, and properties of the Apple Pay API that you must become familiar with to use it effectively. However, when you need even more detailed information, you should consult the Apple developer...