Authenticating Fiori Apps using Touch ID and Passcode Controller

Authenticating Fiori Apps

Introduction

Welcome to part 6 of the blog series on exploring the SAP Cloud Platform SDK for iOS assistants. In this blog, we would add native iOS touch ID feature and Fiori Passcode Controller for iOS.

Business Scenario

Sales executives are always on the field using their gadgets and engage in the lead generation process. Often, they would like to have information about their contacts/leads and would like to know the correspondence history or action items pending on a given lead.

Entering the credentials for HCP is often time-consuming and this could be minimized by using the TouchID feature. The Sales executive could also enter a 4-digit Passcode to log in.

Goal in this blog

To build the below application using Custom Fiori iOS Controls – Passcode controller

Authenticating Fiori Apps

Upon activation of the touchID the user would be prompted for Touch. One could also use the passcode established to log in.

Authenticating Fiori Apps

Let’s play with code

The guts of the code is implemented in the AppDelegate.swift file

The custom Fiori Controller – PasscodeController has an inbuild storyboard that gets invoked upon initialization.

The controller provides 2 storyboard resources, each of which has its own view controller.

PasscodeInputController, VC – PasscodeInputViewController
PasscodeCreateController, VC – PasscodeCreateFirstViewController

Code excerpts from App delegate:

class AppDelegate: UIResponder, UIApplicationDelegate, UISplitViewControllerDelegate, UNUserNotificationCenterDelegate,PasscodeControllerDelegate {

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

self.window?.makeKeyAndVisible()

let defaults = UserDefaults.standard

if let passcode = defaults.value(forKey:passcodeKey ) as? String {

// Check if the passcode is already available

/ let storyboardBundle = Bundle(for: PasscodeInputController.self)

let storyboard = UIStoryboard(name: “PasscodeInputController”, bundle: storyboardBundle)

vc = storyboard.instantiateViewController(withIdentifier: “PasscodeInputViewController”)

let passcodeVC = vc as! PasscodeInputController

passcodeVC.delegate = self;

// present the passcode view

let navController = UINavigationController(rootViewController: passcodeVC)

self.window?.rootViewController?.present(navController, animated: true, completion: nil)

}

else{

let storyboardBundle = Bundle(for: PasscodeCreateController.self)

let storyboard = UIStoryboard(name: “PasscodeCreateController”, bundle: storyboardBundle)

vc = storyboard.instantiateViewController(withIdentifier: “PasscodeCreateFirstViewController”)

let passcodeVC = vc as! PasscodeCreateController

passcodeVC.isSkipPasscodeAllowed = true

passcodeVC.delegate = self;

// present the passcode view

let navController = UINavigationController(rootViewController: passcodeVC)

self.window?.rootViewController?.present(navController, animated: true, completion: nil)

}

Now that you’re done, your finished product will look like this:

AUTHOR

Naveen Rokkam currently leads the Innovation Practice at Mindset. He is responsible for Product Development, research, and Innovation at Mindset. Also, he is a technology evangelist and SAP Practioner with more than a decade of experience in developing and implementing new Software Products using SAP. Additionally, he was part of the Technology Innovation Platform group in SAP Labs and contributed toward the development of Netweaver 8.0, Process Integration, and Business ByDesign. His research interests span across Internet-of-Things, Machine Learning, Big Data, and Mobile App development.