iosswiftpaypalbraintreeapplepay
Braintree - Drop-in UI - Apple Pay - Swift 3
I am integrating Braintree Drop-in UI for credit card, paypal and apple pay payments. I have followed the basic steps of credit card payments. Everything works fine in sandbox.
Now I am implementing apple pay.
I have completed its configuration as mentioned here, successfully : https://developers.braintreepayments.com/guides/apple-pay/configuration/ios/v4
This is how it looks in simulator as of now :
I have written the following code to implement the credit card payment:
import UIKit
import BraintreeDropIn
import Braintree
class DonationPaymentViewController: UIViewController {
let toKinizationKey = "my_tokenization_key"
@IBOutlet weak var amountTextField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func sendRequestPaymentToServer(nonce: String, amount: String) {
let paymentURL = URL(string: "my_api_url")!
var request = URLRequest(url: paymentURL)
print("paymentMethodNonce=\(nonce)&amount=\(amount)")
//request.httpBody = "paymentMethodNonce=\(nonce)&amount=\(amount)".data(using: String.Encoding.utf8)
request.httpMethod = "POST"
let token = UserDefaults.standard.object(forKey: "Token") as! String
let params = ["paymentMethodNonce":"\(nonce)", "amount":amount] as [String : Any]
let prettyPrinted:Bool = false
let options = prettyPrinted ?
JSONSerialization.WritingOptions.prettyPrinted : JSONSerialization.WritingOptions(rawValue: 0)
request.httpBody = try! JSONSerialization.data(withJSONObject: params, options: options)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
request.addValue(token, forHTTPHeaderField: "X-API-KEY")
URLSession.shared.dataTask(with: request) { [weak self] (data, response, error) -> Void in
guard let data = data else {
self?.show(message: (error?.localizedDescription)!)
return
}
guard let result = try? JSONSerialization.jsonObject(with: data, options: []) as? [String: Any], let success = result?["success"] as? Bool, success == true else {
self?.show(message: "Transaction failed. Please try again.")
return
}
self?.show(message: "Successfully charged. Thanks So Much :)")
}.resume()
}
@IBAction func pay(_ sender: Any) {
let request = BTDropInRequest()
let dropIn = BTDropInController(authorization: toKinizationKey, request: request)
{ [unowned self] (controller, result, error) in
if let error = error {
self.show(message: error.localizedDescription)
} else if (result?.isCancelled == true) {
self.show(message: "Transaction Cancelled")
} else if let nonce = result?.paymentMethod?.nonce, let amount = self.amountTextField.text {
self.sendRequestPaymentToServer(nonce: nonce, amount: amount)
}
controller.dismiss(animated: true, completion: nil)
}
self.present(dropIn!, animated: true, completion: nil)
}
func show(message: String) {
DispatchQueue.main.async {
//self.activityIndicator.stopAnimating()
let alertController = UIAlertController(title: message, message: "", preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: "OK", style: .cancel, handler: nil))
self.present(alertController, animated: true, completion: nil)
}
}
}
I need help in coding for apple pay. Braintree docs do not provide proper info on Braintree Drop-in UI for Apple Pay using Swift 3. This is the link I am supposed to follow : https://developers.braintreepayments.com/guides/apple-pay/client-side/ios/v4
But it doesn't seem to be for Drop-in UI. Any help on Braintree drop-in UI for apple pay and paypal would be highly appreciated.
Solution
Check code below i write comment as i can , when user select apple pay you have to configure paymentRequest let paymentRequest = PKPaymentRequest()
then handle PKPaymentAuthorizationViewControllerDelegate to Get nonce
func showDropIn(clientTokenOrTokenizationKey: String) {
let request = BTDropInRequest()
request.applePayDisabled = false // Make sure that applePayDisabled i sfalse
let dropIn = BTDropInController.init(authorization: clientTokenOrTokenizationKey, request: request) { (controller, result, error) in
if (error != nil) {
print("ERROR")
} else if (result?.isCancelled == true) {
print("CANCELLED")
} else if let result = result{
switch result.paymentOptionType {
case .applePay ,.payPal,.masterCard,.discover,.visa:
// Here Result success check paymentMethod not nil if nil then user select applePay
if let paymentMethod = result.paymentMethod{
//paymentMethod.nonce You can use nonce now
controller.dismiss(animated: true, completion: nil)
}else{
controller.dismiss(animated: true, completion: {
self.braintreeClient = BTAPIClient(authorization: clientTokenOrTokenizationKey)
// call apple pay
let paymentRequest = self.paymentRequest()
// Example: Promote PKPaymentAuthorizationViewController to optional so that we can verify
// that our paymentRequest is valid. Otherwise, an invalid paymentRequest would crash our app.
if let vc = PKPaymentAuthorizationViewController(paymentRequest: paymentRequest)
as PKPaymentAuthorizationViewController?
{
vc.delegate = self
self.present(vc, animated: true, completion: nil)
} else {
print("Error: Payment request is invalid.")
}
})
}
default:
print("error")
controller.dismiss(animated: true, completion: nil)
}
// Use the BTDropInResult properties to update your UI
// result.paymentOptionType
// result.paymentMethod
// result.paymentIcon
// result.paymentDescription
}
}
self.present(dropIn!, animated: true, completion: nil)
}
extension ViewController : PKPaymentAuthorizationViewControllerDelegate{
func paymentRequest() -> PKPaymentRequest {
let paymentRequest = PKPaymentRequest()
paymentRequest.merchantIdentifier = "merchant.com.Demo.example";
paymentRequest.supportedNetworks = [PKPaymentNetwork.amex, PKPaymentNetwork.visa, PKPaymentNetwork.masterCard];
paymentRequest.merchantCapabilities = PKMerchantCapability.capability3DS;
paymentRequest.countryCode = "US"; // e.g. US
paymentRequest.currencyCode = "USD"; // e.g. USD
paymentRequest.paymentSummaryItems = [
PKPaymentSummaryItem(label: "Dish", amount: NSDecimalNumber(string: "\(MyOrdersViewController.totalOrderPrice)")),
]
return paymentRequest
}
public func paymentAuthorizationViewController(_ controller: PKPaymentAuthorizationViewController, didAuthorizePayment payment: PKPayment, completion: @escaping (PKPaymentAuthorizationStatus) -> Swift.Void){
// Example: Tokenize the Apple Pay payment
let applePayClient = BTApplePayClient(apiClient: braintreeClient!)
applePayClient.tokenizeApplePay(payment) {
(tokenizedApplePayPayment, error) in
guard let tokenizedApplePayPayment = tokenizedApplePayPayment else {
// Tokenization failed. Check `error` for the cause of the failure.
// Indicate failure via completion callback.
completion(PKPaymentAuthorizationStatus.failure)
return
}
// Received a tokenized Apple Pay payment from Braintree.
// If applicable, address information is accessible in `payment`.
// Send the nonce to your server for processing.
print("nonce = \(tokenizedApplePayPayment.nonce)")
// self.postNonceToServer(paymentMethodNonce: tokenizedApplePayPayment.nonce)
// Then indicate success or failure via the completion callback, e.g.
completion(PKPaymentAuthorizationStatus.success)
}
}
func paymentAuthorizationViewControllerDidFinish(_ controller: PKPaymentAuthorizationViewController) {
dismiss(animated: true, completion: nil)
}
}