Apple Pay can be used with Primer's headless SDK integrations.

Before you begin

This guide assumes that you know how to:

• Create a client session and a client token
• Initialize Headless Universal Checkout

Accept payments with Apple Pay

Prepare the API

Apple Pay requires the following data to process a payment successfully. Pass the following data in the client session, or in the payment request (for manual payment creation).

Prepare the SDK for payments

iOSReact Native

Pre-requisites

Step 1: Prepare Apple Pay settings

1. 1
   Select the Signing and Capabilities tab in your target’s settings.
2. 2
   Tap the + Capability button on the top left, and select Apple Pay from the list.

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let settings = PrimerSettings(    // ...    merchantIdentifier: "merchant-identifier",    // ...)Primer.shared.configure(settings: settings)

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Step 2: Display Apple Pay button

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extension ViewController: PrimerHeadlessUniversalCheckoutDelegate {     func primerHeadlessUniversalCheckoutDidLoadAvailablePaymentMethods(_ paymentMethodTypes: [String]) {        self.paymentMethods = paymentMethodsTypes    }     func primerHeadlessUniversalCheckoutDidCompleteCheckoutWithData(_ data: PrimerCheckoutData) {        // Checkout completed    }} extension UIViewController: UITableViewDataSource, UITableViewDelegate {     func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {        return self.paymentMethods.count    }     func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {        let paymentMethod = self.paymentMethods[indexPath.row]        let cell = tableView.dequeueReusableCell(withIdentifier: "MerchantPaymentMethodCell", for: indexPath) as! MerchantPaymentMethodCell        cell.configure(paymentMethodType: paymentMethod)         // Primer SDK can provide you with Payment Method buttons that follow        // the payment methods UI guidelines.        // Example given for Apple Pay payment method        // https://developer.apple.com/design/human-interface-guidelines/technologies/apple-pay/introduction        // let paymentMethodButton = PrimerHeadlessUniversalCheckout.makeButton(for: paymentMethod)         return cell    }     func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {        // The user has selected a payment method    }}

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Handle payment method

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PrimerHeadlessUniversalCheckout.current.showPaymentMethod("APPLE_PAY")

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Limitations

• When used in the simulator, Apple Pay appears but fails to complete the flow. This is due to a limitation of Apple Pay that does not return the correct data when used in the simulator.
• Our current implementation of Apple Pay does not support the card networks mir, girocard, bancomat, and bancontact.

Troubleshooting

**[unable-to-make-payments-on-provided-networks]**

Apple Pay Is Not Available in “APP NAME”

A correct merchant identifier must satisfy the following conditions:

• Is present in your Xcode’s merchant identifiers in the Apple Pay capability.
• Is used by a valid Apple Pay certificate in your Apple Portal
• The above mentioned Apple Pay certificate is uploaded in Primer’s dashboard

**[server-error] Server error [404]: No Matching ProcessingCertificate could be found**

Even though you are using the correct entitlements in your Xcode project, and there is a valid Apple Pay certificate in your Apple Developer portal, the Apple Pay certificate used by the app does not match the Apple Pay certificate that has been uploaded in your dashboard.

[payment-cancelled] Payment method APPLE_PAY cancelled or the Apple Pay view getting dismissed The merchant identifier that you’re passing to Primer SDK is not correct, and it isn’t present in Xcode’s capabilities, or you haven’t provided a merchant name.

A correct merchant identifier must satisfy the following conditions:

• Is present in your Xcode’s merchant identifiers in the Apple Pay capability.

• Is used by a valid Apple Pay certificate in your Apple Portal
• The above mentioned Apple Pay certificate is uploaded in Primer’s dashboard

[NSErrorDomain:4864] the data couldn't be read because it is not in the correct format

Apple Pay will not work on the simulator, it will arrive to the Apple Pay modal view, then fail with the above error when trying to pay. Try it on a real device with Apple Pay enabled.

Go live

You don’t need to do anything particular to go live — just make sure to use production credentials.