PayPal C# DoExpressCheckOut 身份验证错误：10002

Posted 2023-02-22

【中文标题】PayPal C# DoExpressCheckOut 身份验证错误：10002

【英文标题】：PayPal C# DoExpressCheckOut Authentication Error: 10002

【发布时间】：2013-12-02 00:17:24

【问题描述】：

我已经花了将近一天的时间试图解决这个问题，希望能提供任何提示或指导来让这该死的东西正常工作！ 我的 SetExpressCheckOut 和 GetExpressCheckOut 函数正常工作，但我从 PayPal 取回对象..

但最后一步 DoExpressCheckOut 失败并显示以下错误消息：“您无权进行此 API 调用”，因此它不能是我的凭据，因为我在执行 Set 和 Get 调用时使用了相同的凭据。

我有标准的 PayPal 帐户（不是专业帐户） 我正在使用实时端点：https://api-3t.paypal.com/2.0/ 并通过 API 用户名/密码/签名连接

我到处查看是否有特定的 API 权限可以在 PayPal 上配置，但我没有运气...

这是代码。感谢您的帮助..

public bool DoExpressCheckout(string token)
        
            var getDetailsResponse = new GetExpressCheckoutDetailsResponseType();
            var getDetailsRequestType = new GetExpressCheckoutDetailsRequestType();
            var getDetailsReq = new GetExpressCheckoutDetailsReq();
            getDetailsRequestType.Version = GetVersionOrDefault();
            getDetailsRequestType.Token = token;
            getDetailsReq.GetExpressCheckoutDetailsRequest = getDetailsRequestType;

            var requestType = new DoExpressCheckoutPaymentRequestType();
            requestType.Version = GetVersionOrDefault(); // 109

             try
            
                var type2 = new CustomSecurityHeaderType
                
                    Credentials = new UserIdPasswordType()
                    
                        Username = ConfigurationManager.AppSettings["PAYPAL_API_USERNAME"],
                        Password = ConfigurationManager.AppSettings["PAYPAL_API_PASSWORD"],
                        Signature = ConfigurationManager.AppSettings["PAYPAL_API_SIGNATURE"],
                    
                ;

                var paypalAAInt = new PayPalAPIAAInterfaceClient();

                getDetailsResponse = paypalAAInt.GetExpressCheckoutDetails(ref type2, getDetailsReq);
                if (getDetailsResponse.Errors != null && getDetailsResponse.Errors.Length > 0)
                
                    throw new Exception("Exception(s) occured when calling PayPal. First exception: " +
                        getDetailsResponse.Errors[0].LongMessage + getDetailsResponse.Errors.Length.ToString());
                

                if (getDetailsResponse.Ack == AckCodeType.Success)
                
                     var payReq = new DoExpressCheckoutPaymentReq()
                        
                            DoExpressCheckoutPaymentRequest = new DoExpressCheckoutPaymentRequestType()
                            
                                Version = GetVersionOrDefault(), //109
                                DoExpressCheckoutPaymentRequestDetails = new DoExpressCheckoutPaymentRequestDetailsType()
                                
                                    Token = getDetailsResponse.GetExpressCheckoutDetailsResponseDetails.Token,
                                    PaymentAction = PaymentActionCodeType.Sale,
                                    PaymentActionSpecified = true,
                                    PayerID = getDetailsResponse.GetExpressCheckoutDetailsResponseDetails.PayerInfo.PayerID,
                                    PaymentDetails = new PaymentDetailsType[] 
                                        new PaymentDetailsType()
                                        
                                            OrderTotal = getDetailsResponse.GetExpressCheckoutDetailsResponseDetails.PaymentDetails[0].OrderTotal

                                        
                                    
                                
                            
                        ;

                     var resp = paypalAAInt.DoExpressCheckoutPayment(ref type2, payReq);
                     if (resp.Errors != null && resp.Errors.Length > 0)
                     
                         // ######### IT DIES HERE ################3
                         throw new Exception("Exception(s) occured when calling PayPal. First exception: " +
                             resp.Errors[0].LongMessage + resp.Errors.Length.ToString());
                     

                     if (resp.Ack == AckCodeType.Success)
                         return true;
                     
                     else
                         return false;

                return false;
            


            catch (Exception ex)
            
                Logger.LogError(ex, null, null, "Problem in PayPal DoExpressCheckOut function");
                throw new Exception("There was a problem processing your request. You have not been charged!");
            
        

【参考方案1】：

我知道这一定很愚蠢！这是答案 CustomSecurityHeaderType.. 我将它用于 GetDetails 和 DoExpressCheckout 调用。用户/通行证/签名信息在第一次调用时被清除，当发送到 paypalAAInt.DoExpressCheckoutPayment 时它是空的。好悲伤。

【讨论】：

这让我省了一些挫败感。 Tnx！