stripe支付接入步骤

官网：https://dashboard.stripe.com/test/dashboard
文档：https://stripe.com/docs

1.官网注册账号后，开发者-->API密钥,可以获得两个开发密钥
可发布密钥：pk_test_XXXXXX ， 客户端使用
密钥：sk_test_XXXXX ， 服务器使用

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2.设置支付方式：https://dashboard.stripe.com/settings/payment_methods
开启Apple pay

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3. 配置Apple pay ： https://dashboard.stripe.com/settings/payments/apple_pay
   3.1 下载csr，去apple开发者网站配置merchantID证书申请
   
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   3.2 添加新证书
   
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至此网站配置简单完成，下面是app配置
1.引入sdk

pod 'Stripe'

2.注册api

@import Stripe;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
        ///注册api
        [StripeAPI setDefaultPublishableKey: @"pk_test_XXXXXX"];
        ///打开Apple Pay
        [[STPPaymentConfiguration sharedConfiguration] setApplePayEnabled:YES];
        [[STPPaymentConfiguration sharedConfiguration] setAppleMerchantIdentifier:@"merchant.com.XXXXX"];
        return YES;
}

3.构建快捷支付UI

import Foundation
import Stripe
import CloudKit
import UIKit
import SwiftUI

class File: NSObject {
    @objc public func showPaymentSheet(target : UIViewController ,publishableKey : String , clientSecret : String){
        StripeAPI.defaultPublishableKey = publishableKey
        var config = PaymentSheet.Configuration()
        config.allowsDelayedPaymentMethods = false
        config.merchantDisplayName = "XXXXX"
        config.applePay = .init(merchantId: "merchant.com.XXXXX", merchantCountryCode: "CN")
        let paymentSheet = PaymentSheet.init(paymentIntentClientSecret: clientSecret, configuration: config)
        DispatchQueue.main.async {
            paymentSheet.present(from: target) { PaymentSheetResult in
                switch PaymentSheetResult {
                case .completed:
                    print("confiremed")
                case .canceled:
                    print("Canceled!")
                case .failed(let error):
                    print("Payment failed: \(error)")
                }
            }
        }
    }
}

4.使用

#import "工程名-Swift.h"

-(void)click{
    NSString *url = @"http:192.168.100.138:4242/create-payment-intent";
    [NetTool requestType:RequestType_Post url:url params:@{} header:@{} isJsonType:NO Success:^(NSDictionary * _Nonnull response) {
        NSString *publishableKey = response[@"publishableKey"];
        NSString *clientSecret = response[@"clientSecret"];
        if (publishableKey.length > 0 && clientSecret.length > 0) {
            PaymentSheetTool *file = [PaymentSheetTool new];
            [file showPaymentSheetWithTarget:self publishableKey:publishableKey clientSecret:clientSecret];
        }
    } Fail:^(XHError * _Nonnull error) {
        
    }];
}

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使用自定义UI付款步骤

1.根据用户订单，请求服务器，拿到stripe 的 clientSecret

///拿到订单，请求服务器，获取stripe 的 clientSecret
- (IBAction)pay:(id)sender {
    [self.view endEditing:YES];
    NSString *url = @"http:192.168.100.138:4242/create-payment-intent";
    [NetTool requestType:RequestType_Post url:url params:@{} header:@{} isJsonType:NO Success:^(NSDictionary * _Nonnull response) {
        
        NSString *clientSecret = response[@"clientSecret"];
        if ( clientSecret.length > 0) {
            [self stripePayAtClientSecret:clientSecret];
        }
    } Fail:^(XHError * _Nonnull error) {
        
    }];
}

2.构建支付对象，发起支付

- (void)stripePayAtClientSecret:(NSString *)clientSecret {
    // ...
    if (!clientSecret) {
       // PaymentIntent hasn't been created;
        return;
    }
    self.statusL.text = @"";
    ///自定义UI获取到的card信息
    STPCardParams *cardPrams = [STPCardParams new];
    cardPrams.number = self.numL.text;
    cardPrams.expMonth = 11;
    cardPrams.expYear = 2022;
    cardPrams.cvc = @"111";
    ///构建支付方法卡片参数对象
    STPPaymentMethodCardParams *methodCardParams = [[STPPaymentMethodCardParams alloc] initWithCardSourceParams:cardPrams];
    // 构建支付方法参数
    STPPaymentMethodParams *paymentMethodParams = [STPPaymentMethodParams paramsWithCard:methodCardParams billingDetails:nil metadata:nil];
    //构建支付对象
    STPPaymentIntentParams *paymentIntentParams = [[STPPaymentIntentParams alloc] initWithClientSecret:clientSecret];
    paymentIntentParams.paymentMethodParams = paymentMethodParams;
    
    //提交支付 //设置代理
    STPPaymentHandler *paymentHandler = [STPPaymentHandler sharedHandler];
    [paymentHandler confirmPayment:paymentIntentParams withAuthenticationContext:self completion:^(STPPaymentHandlerActionStatus status, STPPaymentIntent *paymentIntent, NSError *error) {
        dispatch_async(dispatch_get_main_queue(), ^{
           
            switch (status) {
                case STPPaymentHandlerActionStatusFailed: {
                    self.statusL.text = error.localizedDescription;
                    break;
                }
                case STPPaymentHandlerActionStatusCanceled: {
                    self.statusL.text = @"用户取消授权";
                     
                    break;
                }
                case STPPaymentHandlerActionStatusSucceeded: {
                    self.statusL.text = @"交易成功";
                    break;
                }
                default:
                    break;
            }
        });
    }];
}

3.实现卡片认证的代理

#pragma mark - STPAuthenticationContext代理
// 必须实现的代理，在哪个控制器上弹出认证窗口，固定写
-(UIViewController *)authenticationPresentingViewController{
    return self;
    //也可以是下面的
//    return self.navigationController.topViewController;
}

///配置认证样式
-(void)configureSafariViewController:(SFSafariViewController *)viewController{
    STPThreeDSUICustomization *uiCustomization = [STPPaymentHandler sharedHandler].threeDSCustomizationSettings.uiCustomization;
    uiCustomization.textFieldCustomization.keyboardAppearance = UIKeyboardAppearanceDark; //键盘黑色
    uiCustomization.navigationBarCustomization.barStyle = UIBarStyleBlack; //导航栏黑色
    uiCustomization.navigationBarCustomization.textColor = UIColor.whiteColor; //文本白色
    [uiCustomization buttonCustomizationForButtonType:STPThreeDSCustomizationButtonTypeCancel].textColor = UIColor.whiteColor; //取消按钮文字白色
}

有关认证情况的测试卡如下

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