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    Apple Pay Essentials
    Apple Pay Essentials
    Apple Pay Essentials
    Ebook304 pages1 hour

    Apple Pay Essentials

    By Bruce Ernest

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    About this ebook

    Harness the power of Apple Pay in your iOS apps and integrate it with global payment gateways

    About This Book
    • Be it adding an Apple Pay button to your app or calculating sales tax with Apple Pay- this book gives you all the information you need to build a fully-functional Apply Pay application
    • Paying within iOS Apps made easier and secure with this no nonsense and powerful guide
    • Escape tedious payment options by creating compelling product card screens that present the Pay button, which your customers can tap to quickly order your products
    Who This Book Is For

    This book is for anyone who wants to integrate Apple Pay in their applications. Basic familiarity with programming and the Xcode developer tools is expected.

    What You Will Learn
    • Design a product card that includes the Apple Pay button
    • Implement the Apple Pay workflow in an efficient way
    • Use NSDecimalNumber objects to perform financial calculations accurately
    • Manage custom order information in the Apple Pay workflow and your custom order management system
    • Extract payment information from a payment token
    • Implement a secure, server-side payment-processor program
    • Find out everything you wanted to know about Apple Pay in iOS 9
    In Detail

    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

    Style and approach

    This is an easy-to-follow guide on integrating Apple Pay in your iOS Application. With step by step instructions along with excellent screen shots you will be able to learn everything that you wanted to know about Passbook and Apple Pay in iOS 8.

    LanguageEnglish
    PublisherPackt Publishing
    Release dateFeb 24, 2016
    ISBN9781785881152
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      Book preview

      Apple Pay Essentials - Bruce Ernest

      (missing alt)

      Table of Contents

      Apple Pay Essentials

      Credits

      About the Author

      About the Reviewer

      www.PacktPub.com

      eBooks, discount offers, and more

      Why subscribe?

      Preface

      What this book covers

      What you need for this book

      Who this book is for

      Conventions

      Reader feedback

      Customer support

      Downloading the example code

      Errata

      Piracy

      Questions

      1. Getting Started with Apple Pay

      An overview of the online payment process

      The Apple Pay payment workflow

      Presenting the Apple Pay button

      Creating the payment request

      Presenting the payment sheet

      Responding to order changes and payment authorization

      Submitting the payment information to the payment gateway

      Enabling Apple Pay in your app

      Creating your app's Apple Pay merchant identifier

      Installing your app's Apple Pay merchant certificate on your Mac

      Enabling Apple Pay in your app's Xcode project

      Summary

      2. Payment Request Workflow

      Getting information from an inventory service

      Getting inventory information

      Getting shipping information

      Displaying the product card

      Presenting product information

      Presenting the Apple Pay button

      Creating the payment request

      Specifying payment details

      Country and currency code

      Merchant identifier and capabilities

      Requiring shipping and billing information

      Requiring shipping or billing addresses

      Specifying shipping or billing addresses

      Specifying shipping methods

      Specifying summary items

      Specifying custom information tied to the order

      Summary

      3. Payment Authorization Workflow

      Actors and operations in the authorization workflow

      Implementing a shared method to compute summary items

      Responding to user interactions with the payment sheet

      User changes shipping information

      User changes shipping method

      User authorizes payment request

      Summary

      4. Payment Processing Workflow

      Actors and operations in the processing workflow

      The preprocess phase

      The merchant app receives the payment token

      The merchant app receives the charge token from the payment gateway

      The merchant app sends the order information to the order processing system

      The process phase

      The postprocess phase

      The merchant app receives the transaction status from the order processing web app

      The merchant app conveys the transaction status to the user

      The merchant app dismisses the payment sheet

      Summary

      5. Designing an Order Management Server

      Configuring an order management server web app

      Defining order management data structures

      Providing inventory information to clients

      Processing orders from clients

      Implementing secure communication

      Summary

      6. Apple Pay API Summary

      Main classes

      The PKPaymentButton class

      Creating the button

      +buttonWithType:style

      The PKPaymentRequest class

      Payment processing information

      countryCode (NSString*)

      currencyCode (NSString*)

      merchantCapabilities (PKMerchantCapability)

      merchantIdentifier (NSString*)

      supportedNetworks (NSArray*)

      Payment summary items

      paymentSummaryItems (NSArray*)

      The required address fields

      requiredBillingAddressFields (PKAddressField), requiredShippingAddressFields (PKAddressField)

      Billing and shipping contacts

      billingContact (PKContact*), shippingContact (PKContact*)

      Shipping methods

      shippingMethods (NSArray*)

      Shipping type

      shippingType (PKShippingType)

      Application data

      applicationData (NSData*)

      The PKPaymentSummaryItem class

      Creating a summary item

      +summaryItemWithLabel:amount:

      +summaryItemWithLabel:amount:type:

      Summary item components

      label (NSString*)

      amount (NSDecimalNumber*)

      Pending or final

      type (PKPaymentSummaryItemType)

      The PKPaymentMethod class

      Card tame

      displayName (NSString*)

      Card type

      type (PKPaymentMethodType)

      Payment network

      network (NSString*)

      Payment pass

      paymentPass (PKPaymentPass*)

      The PKShippingMethod class

      User-friendly description

      detail (NSString*)

      App-level identifier

      identifier (NSString*)

      The PKPaymentAuthorizationViewController class

      Determining Apple Pay support

      +canMakePayments

      +canMakePaymentsUsingNetworks:

      +canMakePaymentsUsingNetworks:capabilities:

      Initializing and presenting

      -initWithPaymentRequest:

      -initWithPaymentRequest:

      Payment sheet delegate

      delegate id

      The PKPayment class

      Payment information

      token (PKPaymentToken*)

      Billing and shipping contacts

      billingContact (PKContact*)

      shippingContact (PKContact*)

      shippingMethod

      The PKPaymentToken class

      Encrypted payment information

      paymentData (NSData*)

      Payment method and transaction identifier

      paymentMethod (PKPaymentMethod*)

      transactionIdentifier (NSString*)

      Payment sheet user event protocol

      The PKPaymentAuthorizationViewControllerDelegate protocol

      The user chooses a payment card

      -paymentAuthorizationViewController:didSelectPaymentMethod: completion:

      The user selects a shipping address

      -paymentAuthorizationViewController:didSelectShippingContact: completion:

      The user selects a shipping method

      -paymentAuthorizationViewController:didSelectShippingMethod: completion:

      The user authorizes the payment request

      -paymentAuthorizationViewControllerWillAuthorizePayment:

      -paymentAuthorizationViewController:didAuthorizePayment: completion:

      The payment sheet is done

      -paymentAuthorizationViewControllerDidFinish:

      Auxiliary classes

      The PKContact class

      Contact address components

      emailAddress (NSString*)

      name (NSPersonNameComponents*)

      phoneNumber (CNPhoneNumber*)

      postalAddress (CNPostalAddress*)

      The NSPersonNameComponents class

      Person name components

      namePrefix (NSString*)

      givenName (NSString*)

      middleName (NSString*)

      familyName (NSString*)

      nameSuffix (NSString*)

      nickname (NSString)

      phoneticRepresentation (NSPersonNameComponents*)

      The CNPhoneNumber class

      Creating a phone number

      +phoneNumberWithStringValue:

      Phone number string

      stringValue (NSString*)

      The CNPostalAddress class

      Postal address components

      street (NSString*)

      city (NSString*)

      state (NSString*)

      postalCode (NSString*)

      country (NSString*)

      ISOCountryCode (NSString*)

      Summary

      Index

      Apple Pay Essentials

      Apple Pay Essentials

      Copyright © 2016 Packt Publishing

      All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

      Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

      Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

      First published: February 2016

      Production reference: 1190216

      Published by Packt Publishing Ltd.

      Livery Place

      35 Livery Street

      Birmingham B3 2PB, UK.

      ISBN 978-1-78588-638-6

      www.packtpub.com

      Credits

      Author

      Ernest Bruce

      Reviewer

      Zeeshan Chawdhary

      Commissioning Editor

      Veena Pagare

      Acquisition Editor

      Kirk D'Costa

      Content Development Editor

      Preeti Singh

      Technical Editor

      Siddhesh Patil

      Copy Editors

      Shruti Iyer

      Priyanka Ravi

      Project Coordinator

      Shweta H Birwatkar

      Proofreader

      Safis Editing

      Indexer

      Rekha Nair

      Production Coordinator

      Aparna Bhagat

      Cover Work

      Aparna Bhagat

      About the Author

      Ernest Bruce is an accomplished technical writer and software engineer. He has worked for 13 years at Apple, Inc., where he held the position of Senior Technical Writer writing developer documentation. At Apple, Ernest specialized in writing documentation for the Xcode toolset, focusing on the Xcode user guide, and Xcode overview, as well as unit testing documentation and sample code. He also worked extensively on API documentation for the OS X and iOS platforms. Ernest helped design and develop the Xcode help articles that aid developers in getting around the user interface of the Xcode app. Before his years at Apple, Ernest worked as a programmer for Ping, Inc., where he helped manage the manufacturing processes using APL (A Programming Language). Ernest also has extensive experience in customer service, which has been instrumental to him developing content that readers find clear and easy to read, and that makes complex concepts more approachable.

      Ernest is the head of Nerd Brawn, LLC, a software development company that focuses on developing platforms that help people learn about their environment and each other in innovative ways. The company is also working on new techniques to present content on desktop computers, tablets, and mobile phones.

      About the Reviewer

      Zeeshan Chawdhary has been dabbling with location-based technologies since 2007, having working with industry leaders like Foursquare, Google, and Yahoo in the LBS space. He is been working with startups for the past few years; e-commerce, location-based services, mobile apps – he has built them all, and scaled up for millions of users.

      He is also an author, having written three books for Packt Publishing on iOS, Windows Phone, and iBooks Author respectively. He is currently writing another book on Ubuntu and getting his hands dirty with Android.

      I would like to thank Packt Publishing for generously offering me books to review; it not only helps me learn new technologies but helps me strengthen what I know, as well as learn how other programmers work.

      www.PacktPub.com

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