c# .net PayPal支付验证

c# .net Paypal支付Webhooks回调验证

• 系列文章目录
• 前言
• 一、 PayPal支付？
• 二、步骤
• • 1.引入
  • 2.config配置文件
  • 3.业务代码
• 总结

记录一下，那些年踩过的坑！

官方主页
官方开发文档

   using Newtonsoft.Json.Linq;
   using PayPal.Api; 
   using System; 
   using System.IO;
   using System.Net; 
   using System.Text;
   using System.Web;
   using System.Web.UI;  

1、该处用于获取config 和accessToken的值。
2、clientId和clientSecret获取方式，请参考c# .net Paypal支付Webhooks回调验证

//处理HttpWebRequest访问https有安全证书的问题（ 请求被中止: 未能创建 SSL/TLS 安全通道。）
                ServicePointManager.ServerCertificateValidationCallback += (s, cert, chain, sslPolicyErrors) => true;
                ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
                System.Net.ServicePointManager.Expect100Continue = false;
                var PAYID = "4BN02222P9916474Y";
                var url = ConfigurationManager.AppSettings["PayUrl2"];
                //var url = "https://api.sandbox.paypal.com/v2/checkout/orders/59Y55781A9606825K";//适用于前端使用intent：CAPTURE支付方式，传回的ID查询
                //或
                var url = "https://api.sandbox.paypal.com/v2/payments/captures/4BN07117A9916474Y";//适用于前端使用intent：CAPTURE支付方式，传回的ID查询

                //var url = "https://api-m.sandbox.paypal.com/v1/payments/payment/PAYID-MGBZAOQ48V1615AUW301782F";//适用于前端使用intent：sale支付方式，传回的ID查询 传PAYID查询
                //var url = "https://sandbox.paypal.com/v1/payments/payment/PAYID-MGBZAOQ48V1615AUW301782F";//适用于前端使用intent：sale支付方式，传回的ID查询 传PAYID查询

                var config = ConfigManager.Instance.GetProperties();//读取配置文件
                var accessToken = new OAuthTokenCredential(config).GetAccessToken();
                
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Method = "get";
                request.ContentType = "application/json";
                request.Headers.Add("Authorization", accessToken);

                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                Stream myResponseStream = response.GetResponseStream();
                StreamReader myStreamReader = new StreamReader(myResponseStream);
                retString = myStreamReader.ReadToEnd();
                myStreamReader.Close();
                myResponseStream.Close();

                //WriteLog("订单Paypal支付验证paypal_retString：" + retString);

                JObject obj = JObject.Parse(retString);
                var pay_status = obj["status"].ToString();//支付状态，成功：COMPLETED
                var amount_total = Convert.ToDecimal(obj["amount"]["value"]);//订单金额
                var invoice_number = obj["invoice_id"].ToString(); //订单号

1、该处代码用于支付验证。
2、官方文档： 显示捕获的付款详细信息 /v2/payments/captures/{capture_id}

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