Pre-requisites

Handling redirects is required for Payment Methods that present a webpage or open a 3rd party application for the customer to enter their credentials and validate their payment.

To enable this feature, ensure that you include the urlScheme parameter when configuring the PrimerPaymentMethodOptions object.

Set up redirects

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let settings = PrimerSettings(  // ...  paymentMethodOptions: PrimerPaymentMethodOptions(    urlScheme: "{url scheme}", // e.g. primer://, yourscheme://  ),  // ...)

Handle redirects

When the user is redirected back to the main app, the function application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool is automatically called by iOS. Make sure to call Primer.shared.application... to forward this information to the SDK so that Universal Checkout can continue the flow.

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import PrimerSDKimport UIKit
@UIApplicationMainclass AppDelegate: UIResponder, UIApplicationDelegate {
  // ...
  func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool {    return Primer.shared.application(application, continue: userActivity, restorationHandler: restorationHandler)  }}

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// 👇 Create the payment method managerlet nativeUIPaymentMethodManager = try PrimerHeadlessUniversalCheckout.NativeUIManager(paymentMethodType: "PAYPAL") // 👇 Show the payment methodtry nativeUIPaymentMethodManager.showPaymentMethod(intent: .checkout)