init
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394
ios/RNBraintreeDropIn.swift
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394
ios/RNBraintreeDropIn.swift
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import Foundation
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import UIKit
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import PassKit
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import BraintreeCore
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import BraintreeDropIn
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import BraintreeCard
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import BraintreeDataCollector
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import BraintreeApplePay
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import BraintreeVenmo
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@objc(RNBraintreeDropIn)
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class RNBraintreeDropIn: NSObject {
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private var dataCollector: BTDataCollector?
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private var braintreeClient: BTAPIClient?
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private var paymentRequest: PKPaymentRequest?
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private var viewController: PKPaymentAuthorizationViewController?
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private var deviceDataCollector: String = ""
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private var currentResolve: RCTPromiseResolveBlock?
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private var currentReject: RCTPromiseRejectBlock?
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private var applePayAuthorized: Bool = false
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override init() {
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super.init()
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}
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@objc
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static func requiresMainQueueSetup() -> Bool {
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return true
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}
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@objc
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func show(_ options: NSDictionary,
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resolve: @escaping RCTPromiseResolveBlock,
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reject: @escaping RCTPromiseRejectBlock) {
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DispatchQueue.main.async { [weak self] in
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guard let self = self else { return }
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self.currentResolve = resolve
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self.currentReject = reject
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self.applePayAuthorized = false
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guard let clientToken = options["clientToken"] as? String else {
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reject("NO_CLIENT_TOKEN", "You must provide a client token", nil)
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return
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}
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// Setup color scheme
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var colorScheme: BTDropInUICustomization.ColorScheme = .light
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if let darkTheme = options["darkTheme"] as? Bool, darkTheme {
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if #available(iOS 13.0, *) {
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colorScheme = .dynamic
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} else {
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colorScheme = .dark
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}
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}
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let uiCustomization = BTDropInUICustomization(colorScheme: colorScheme)
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if let fontFamily = options["fontFamily"] as? String {
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uiCustomization.fontFamily = fontFamily
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}
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if let boldFontFamily = options["boldFontFamily"] as? String {
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uiCustomization.boldFontFamily = boldFontFamily
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}
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let request = BTDropInRequest()
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request.uiCustomization = uiCustomization
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// 3D Secure setup
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if let threeDSecureOptions = options["threeDSecure"] as? NSDictionary {
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guard let amount = threeDSecureOptions["amount"] as? NSNumber else {
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reject("NO_3DS_AMOUNT", "You must provide an amount for 3D Secure", nil)
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return
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}
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let threeDSecureRequest = BTThreeDSecureRequest()
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threeDSecureRequest.amount = NSDecimalNumber(value: amount.doubleValue)
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request.threeDSecureRequest = threeDSecureRequest
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}
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// Initialize API client and data collector
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let apiClient = BTAPIClient(authorization: clientToken)!
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self.dataCollector = BTDataCollector(apiClient: apiClient)
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self.dataCollector?.collectDeviceData { [weak self] deviceData in
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self?.deviceDataCollector = deviceData
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}
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// Vault manager
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if let vaultManager = options["vaultManager"] as? Bool, vaultManager {
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request.vaultManager = true
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}
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// Card disabled
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if let cardDisabled = options["cardDisabled"] as? Bool, cardDisabled {
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request.cardDisabled = true
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}
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// Apple Pay setup
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if let applePay = options["applePay"] as? Bool, applePay {
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self.setupApplePay(options: options, clientToken: clientToken, reject: reject)
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// Don't disable Apple Pay in request
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} else {
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request.applePayDisabled = true
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}
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// Venmo setup
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if let venmo = options["venmo"] as? Bool, venmo {
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request.venmoDisabled = false
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} else {
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request.venmoDisabled = true
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}
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// PayPal setup
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if let payPal = options["payPal"] as? Bool, !payPal {
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request.paypalDisabled = true
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}
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// Initialize Drop-In controller
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let dropIn = BTDropInController(authorization: clientToken, request: request) { [weak self] (controller, result, error) in
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guard let self = self else { return }
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controller.dismiss(animated: true) {
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if let error = error {
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self.currentReject?("DROP_IN_ERROR", error.localizedDescription, error)
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} else if result?.isCanceled == true {
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self.currentReject?("USER_CANCELLATION", "The user cancelled", nil)
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} else if let result = result {
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self.handleDropInResult(result, threeDSecureOptions: options["threeDSecure"] as? NSDictionary)
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}
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}
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}
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if let dropIn = dropIn {
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guard let rootViewController = self.getRootViewController() else {
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reject("NO_ROOT_VC", "Could not find root view controller", nil)
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return
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}
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rootViewController.present(dropIn, animated: true, completion: nil)
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} else {
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reject("INVALID_CLIENT_TOKEN", "The client token seems invalid", nil)
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}
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}
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}
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private func setupApplePay(options: NSDictionary, clientToken: String, reject: @escaping RCTPromiseRejectBlock) {
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guard let merchantIdentifier = options["merchantIdentifier"] as? String,
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let countryCode = options["countryCode"] as? String,
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let currencyCode = options["currencyCode"] as? String,
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let merchantName = options["merchantName"] as? String,
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let orderTotal = options["orderTotal"] as? NSNumber else {
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reject("MISSING_OPTIONS", "Not all required Apple Pay options were provided", nil)
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return
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}
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self.braintreeClient = BTAPIClient(authorization: clientToken)
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let paymentRequest = PKPaymentRequest()
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paymentRequest.merchantIdentifier = merchantIdentifier
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paymentRequest.merchantCapabilities = .capability3DS
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paymentRequest.countryCode = countryCode
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paymentRequest.currencyCode = currencyCode
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paymentRequest.supportedNetworks = [.amex, .visa, .masterCard, .discover, .chinaUnionPay]
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let paymentSummaryItem = PKPaymentSummaryItem(
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label: merchantName,
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amount: NSDecimalNumber(value: orderTotal.doubleValue)
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)
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paymentRequest.paymentSummaryItems = [paymentSummaryItem]
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self.paymentRequest = paymentRequest
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if let vc = PKPaymentAuthorizationViewController(paymentRequest: paymentRequest) {
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vc.delegate = self
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self.viewController = vc
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}
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}
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private func handleDropInResult(_ result: BTDropInResult, threeDSecureOptions: NSDictionary?) {
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// Check for 3D Secure
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if let threeDSecureOptions = threeDSecureOptions,
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let cardNonce = result.paymentMethod as? BTCardNonce {
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if let threeDSecureInfo = cardNonce.threeDSecureInfo {
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if !threeDSecureInfo.liabilityShiftPossible && threeDSecureInfo.wasVerified {
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self.currentReject?("3DSECURE_NOT_ABLE_TO_SHIFT_LIABILITY", "3D Secure liability cannot be shifted", nil)
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return
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} else if !threeDSecureInfo.liabilityShifted && threeDSecureInfo.wasVerified {
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self.currentReject?("3DSECURE_LIABILITY_NOT_SHIFTED", "3D Secure liability was not shifted", nil)
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return
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}
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}
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}
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// Check for Apple Pay
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if result.paymentMethod == nil,
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let paymentMethodType = result.paymentMethodType?.rawValue,
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(16...18).contains(paymentMethodType) {
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// Apple Pay flow
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if let viewController = self.viewController,
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let rootViewController = self.getRootViewController() {
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rootViewController.present(viewController, animated: true, completion: nil)
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}
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return
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}
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// Check for Venmo
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if let venmoNonce = result.paymentMethod as? BTVenmoAccountNonce {
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let resultDict: [String: Any] = [
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"nonce": venmoNonce.nonce,
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"type": "Venmo",
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"description": "Venmo \(venmoNonce.username)",
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"isDefault": false,
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"deviceData": self.deviceDataCollector
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]
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self.currentResolve?(resultDict)
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return
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}
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// Default payment method handling
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self.resolvePayment(result: result)
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}
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@objc
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func fetchMostRecentPaymentMethod(_ clientToken: String,
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resolve: @escaping RCTPromiseResolveBlock,
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reject: @escaping RCTPromiseRejectBlock) {
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BTDropInResult.mostRecentPaymentMethod(forClientToken: clientToken) { [weak self] (result, error) in
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if let error = error {
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reject("FETCH_ERROR", error.localizedDescription, error)
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} else if result?.isCanceled == true {
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reject("USER_CANCELLATION", "The user cancelled", nil)
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} else if let result = result {
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self?.resolvePayment(result: result)
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resolve(self?.buildResultDictionary(from: result))
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} else {
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resolve(nil)
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}
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}
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}
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@objc
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func tokenizeCard(_ clientToken: String,
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cardInfo: NSDictionary,
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resolve: @escaping RCTPromiseResolveBlock,
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reject: @escaping RCTPromiseRejectBlock) {
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let cvv = cardInfo["cvv"] as? String
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let onlyCVV = cardInfo["onlyCVV"] as? Bool ?? false
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if onlyCVV {
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guard cvv != nil else {
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reject("INVALID_CARD_INFO", "Please enter cvv", nil)
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return
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}
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} else {
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guard let _ = cardInfo["number"] as? String,
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let _ = cardInfo["expirationMonth"] as? String,
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let _ = cardInfo["expirationYear"] as? String,
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cvv != nil,
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let _ = cardInfo["postalCode"] as? String else {
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reject("INVALID_CARD_INFO", "Invalid card info", nil)
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return
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}
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}
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let braintreeClient = BTAPIClient(authorization: clientToken)!
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let cardClient = BTCardClient(apiClient: braintreeClient)
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let card = BTCard()
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if !onlyCVV {
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card.number = cardInfo["number"] as? String
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card.expirationMonth = cardInfo["expirationMonth"] as? String
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card.expirationYear = cardInfo["expirationYear"] as? String
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card.postalCode = cardInfo["postalCode"] as? String
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}
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card.cvv = cvv
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cardClient.tokenize(card) { [weak self] (tokenizedCard, error) in
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if let error = error {
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reject("TOKENIZE_ERROR", "Error tokenizing card", error)
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} else if let tokenizedCard = tokenizedCard {
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var jsResult: [String: Any] = [
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"nonce": tokenizedCard.nonce,
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"type": "card"
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]
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let dataCollector = BTDataCollector(apiClient: braintreeClient)
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dataCollector.collectDeviceData { deviceData in
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if !deviceData.isEmpty {
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jsResult["deviceData"] = deviceData
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resolve(jsResult)
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} else {
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reject("DEVICE_DATA_ERROR", "Failed to collect device data", nil)
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}
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}
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}
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}
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}
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@objc
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func collectDeviceData(_ clientToken: String,
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resolve: @escaping RCTPromiseResolveBlock,
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reject: @escaping RCTPromiseRejectBlock) {
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let apiClient = BTAPIClient(authorization: clientToken)!
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let dataCollector = BTDataCollector(apiClient: apiClient)
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dataCollector.collectDeviceData { deviceData in
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if !deviceData.isEmpty {
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resolve(deviceData)
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} else {
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reject("DEVICE_DATA_ERROR", "Failed to collect device data", nil)
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}
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}
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}
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private func resolvePayment(result: BTDropInResult) {
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guard let resolve = self.currentResolve else { return }
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let resultDict = buildResultDictionary(from: result)
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resolve(resultDict)
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}
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private func buildResultDictionary(from result: BTDropInResult) -> [String: Any]? {
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guard let paymentMethod = result.paymentMethod else {
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return nil
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}
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return [
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"nonce": paymentMethod.nonce,
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"type": paymentMethod.type,
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"description": result.paymentDescription ?? "",
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"isDefault": paymentMethod.isDefault,
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"deviceData": self.deviceDataCollector
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]
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}
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private func getRootViewController() -> UIViewController? {
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guard let window = UIApplication.shared.windows.first(where: { $0.isKeyWindow }) else {
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return nil
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}
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var rootViewController = window.rootViewController
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if let presented = rootViewController?.presentedViewController {
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rootViewController = presented
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}
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return rootViewController
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}
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}
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// MARK: - PKPaymentAuthorizationViewControllerDelegate
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extension RNBraintreeDropIn: PKPaymentAuthorizationViewControllerDelegate {
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func paymentAuthorizationViewController(_ controller: PKPaymentAuthorizationViewController,
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didAuthorizePayment payment: PKPayment,
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handler completion: @escaping (PKPaymentAuthorizationResult) -> Void) {
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guard let braintreeClient = self.braintreeClient else {
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completion(PKPaymentAuthorizationResult(status: .failure, errors: nil))
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return
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}
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let applePayClient = BTApplePayClient(apiClient: braintreeClient)
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applePayClient.tokenize(payment) { [weak self] (tokenizedPayment, error) in
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if let tokenizedPayment = tokenizedPayment {
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completion(PKPaymentAuthorizationResult(status: .success, errors: nil))
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self?.applePayAuthorized = true
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let result: [String: Any] = [
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"nonce": tokenizedPayment.nonce,
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"type": "Apple Pay",
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"description": "Apple Pay \(tokenizedPayment.type ?? "")",
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"isDefault": false,
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"deviceData": self?.deviceDataCollector ?? ""
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]
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self?.currentResolve?(result)
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} else {
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completion(PKPaymentAuthorizationResult(status: .failure, errors: nil))
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}
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}
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}
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func paymentAuthorizationViewControllerDidFinish(_ controller: PKPaymentAuthorizationViewController) {
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controller.dismiss(animated: true) { [weak self] in
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if self?.applePayAuthorized == false {
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self?.currentReject?("USER_CANCELLATION", "The user cancelled", nil)
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}
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}
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}
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}
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Reference in New Issue
Block a user