C# PayPalAPIInterfaceServiceService.DoExpressCheckoutPayment方法代碼示例

        protected void Submit_Click(object sender, EventArgs e)
        {
            PayPalAPIInterfaceServiceService service = new PayPalAPIInterfaceServiceService();
            GetExpressCheckoutDetailsReq getECWrapper = new GetExpressCheckoutDetailsReq();
            getECWrapper.GetExpressCheckoutDetailsRequest = new GetExpressCheckoutDetailsRequestType(token.Value);
            GetExpressCheckoutDetailsResponseType getECResponse = service.GetExpressCheckoutDetails(getECWrapper);

            // Create request object
            DoExpressCheckoutPaymentRequestType request = new DoExpressCheckoutPaymentRequestType();
            DoExpressCheckoutPaymentRequestDetailsType requestDetails = new DoExpressCheckoutPaymentRequestDetailsType();
            request.DoExpressCheckoutPaymentRequestDetails = requestDetails;

            requestDetails.PaymentDetails = getECResponse.GetExpressCheckoutDetailsResponseDetails.PaymentDetails;
            requestDetails.Token = token.Value;
            requestDetails.PayerID = payerId.Value;
            requestDetails.PaymentAction = (PaymentActionCodeType)
                Enum.Parse(typeof(PaymentActionCodeType), paymentAction.SelectedValue);

            // Invoke the API
            DoExpressCheckoutPaymentReq wrapper = new DoExpressCheckoutPaymentReq();
            wrapper.DoExpressCheckoutPaymentRequest = request;
            DoExpressCheckoutPaymentResponseType doECResponse = service.DoExpressCheckoutPayment(wrapper);

            // Check for API return status
            setKeyResponseObjects(service, doECResponse);
        }

        public IPaymentResult ComplitePayment(IInvoice invoice, IPayment payment, string token, string payerId)
        {
            var config = new Dictionary<string, string>
                    {
                        {"mode", "sandbox"},
                        {"account1.apiUsername", _settings.ApiUsername},
                        {"account1.apiPassword", _settings.ApiPassword},
                        {"account1.apiSignature", _settings.ApiSignature}
                    };
            var service = new PayPalAPIInterfaceServiceService(config);

            var getExpressCheckoutDetails = new GetExpressCheckoutDetailsReq
                {
                    GetExpressCheckoutDetailsRequest = new GetExpressCheckoutDetailsRequestType(token)
                };
            var expressCheckoutDetailsResponse = service.GetExpressCheckoutDetails(getExpressCheckoutDetails);

            if (expressCheckoutDetailsResponse != null)
            {
                if (expressCheckoutDetailsResponse.Ack == AckCodeType.SUCCESS)
                {
                    // do express checkout
                    var doExpressCheckoutPayment = new DoExpressCheckoutPaymentReq();
                    var doExpressCheckoutPaymentRequestDetails = new DoExpressCheckoutPaymentRequestDetailsType
                        {
                            Token = token,
                            PayerID = payerId,
                            PaymentDetails = new List<PaymentDetailsType> {GetPaymentDetails(invoice)}
                        };

                    var doExpressCheckoutPaymentRequest =
                        new DoExpressCheckoutPaymentRequestType(doExpressCheckoutPaymentRequestDetails);
                    doExpressCheckoutPayment.DoExpressCheckoutPaymentRequest = doExpressCheckoutPaymentRequest;

                    var doExpressCheckoutPaymentResponse = service.DoExpressCheckoutPayment(doExpressCheckoutPayment);

                    if (doExpressCheckoutPaymentResponse != null)
                    {
                        if (doExpressCheckoutPaymentResponse.Ack == AckCodeType.SUCCESS)
                        {
                            payment.Authorized = true;
                            payment.Collected = true;
                            return new PaymentResult(Attempt<IPayment>.Succeed(payment), invoice, true);
                        }
                    }
                }
            }

            return new PaymentResult(Attempt<IPayment>.Succeed(payment), invoice, false);
        }

        protected void Submit_Click(object sender, EventArgs e)
        {
            // Configuration map containing signature credentials and other required configuration.
            // For a full list of configuration parameters refer in wiki page
            // [https://github.com/paypal/sdk-core-dotnet/wiki/SDK-Configuration-Parameters]
            Dictionary<string, string> configurationMap = Configuration.GetAcctAndConfig();

            // Create the PayPalAPIInterfaceServiceService service object to make the API call
            PayPalAPIInterfaceServiceService service = new PayPalAPIInterfaceServiceService(configurationMap);

            GetExpressCheckoutDetailsReq getECWrapper = new GetExpressCheckoutDetailsReq();
            // (Required) A timestamped token, the value of which was returned by SetExpressCheckout response.
            // Character length and limitations: 20 single-byte characters
            getECWrapper.GetExpressCheckoutDetailsRequest = new GetExpressCheckoutDetailsRequestType(token.Value);
            // # API call
            // Invoke the GetExpressCheckoutDetails method in service wrapper object
            GetExpressCheckoutDetailsResponseType getECResponse = service.GetExpressCheckoutDetails(getECWrapper);

            // Create request object
            DoExpressCheckoutPaymentRequestType request = new DoExpressCheckoutPaymentRequestType();
            DoExpressCheckoutPaymentRequestDetailsType requestDetails = new DoExpressCheckoutPaymentRequestDetailsType();
            request.DoExpressCheckoutPaymentRequestDetails = requestDetails;

            requestDetails.PaymentDetails = getECResponse.GetExpressCheckoutDetailsResponseDetails.PaymentDetails;
            // (Required) The timestamped token value that was returned in the SetExpressCheckout response and passed in the GetExpressCheckoutDetails request.
            requestDetails.Token = token.Value;
            // (Required) Unique PayPal buyer account identification number as returned in the GetExpressCheckoutDetails response
            requestDetails.PayerID = payerId.Value;
            // (Required) How you want to obtain payment. It is one of the following values:
            // * Authorization – This payment is a basic authorization subject to settlement with PayPal Authorization and Capture.
            // * Order – This payment is an order authorization subject to settlement with PayPal Authorization and Capture.
            // * Sale – This is a final sale for which you are requesting payment.
            // Note: You cannot set this value to Sale in the SetExpressCheckout request and then change this value to Authorization in the DoExpressCheckoutPayment request.
            requestDetails.PaymentAction = (PaymentActionCodeType)
                Enum.Parse(typeof(PaymentActionCodeType), paymentAction.SelectedValue);

            // Invoke the API
            DoExpressCheckoutPaymentReq wrapper = new DoExpressCheckoutPaymentReq();
            wrapper.DoExpressCheckoutPaymentRequest = request;
            // # API call
            // Invoke the DoExpressCheckoutPayment method in service wrapper object
            DoExpressCheckoutPaymentResponseType doECResponse = service.DoExpressCheckoutPayment(wrapper);

            // Check for API return status
            setKeyResponseObjects(service, doECResponse);
        }

 public DoExpressCheckoutPaymentResponseType DoExpressCheckout(HttpResponseBase response, string token)
 {
     var getCheckoutRequest = new GetExpressCheckoutDetailsRequestType();
     getCheckoutRequest.Token = token;
     var getCheckOutInfo = new GetExpressCheckoutDetailsReq();
     getCheckOutInfo.GetExpressCheckoutDetailsRequest = getCheckoutRequest;
     var service = new PayPalAPIInterfaceServiceService();
     var getResponse = service.GetExpressCheckoutDetails(getCheckOutInfo);
     var doRequest = new DoExpressCheckoutPaymentRequestType();
     var requestInfo = new DoExpressCheckoutPaymentRequestDetailsType();
     doRequest.DoExpressCheckoutPaymentRequestDetails = requestInfo;
     requestInfo.PaymentDetails = getResponse.GetExpressCheckoutDetailsResponseDetails.PaymentDetails;
     requestInfo.Token = token;
     requestInfo.PayerID = getResponse.GetExpressCheckoutDetailsResponseDetails.PayerInfo.PayerID;
     requestInfo.PaymentAction = PaymentActionCodeType.SALE;
     var wrapper = new DoExpressCheckoutPaymentReq();
     wrapper.DoExpressCheckoutPaymentRequest = doRequest;
     return service.DoExpressCheckoutPayment(wrapper);
 }

        public string ProcessPayment(string token, string PayerID)
        {
            string result = "success";

            GetExpressCheckoutDetailsRequestType request = new GetExpressCheckoutDetailsRequestType();
            request.Version = "104.0";
            request.Token = token;
            GetExpressCheckoutDetailsReq wrapper = new GetExpressCheckoutDetailsReq();
            wrapper.GetExpressCheckoutDetailsRequest = request;
            Dictionary<string, string> sdkConfig = new Dictionary<string, string>();

            sdkConfig.Add("mode", appMode);
            sdkConfig.Add("account1.apiUsername", username);
            sdkConfig.Add("account1.apiPassword", password);
            sdkConfig.Add("account1.apiSignature", signature);
            PayPalAPIInterfaceServiceService service = new PayPalAPIInterfaceServiceService(sdkConfig);
            GetExpressCheckoutDetailsResponseType ecResponse = service.GetExpressCheckoutDetails(wrapper);

            PaymentDetailsType paymentDetail = new PaymentDetailsType();
            paymentDetail.NotifyURL = "http://replaceIpnUrl.com";
            paymentDetail.PaymentAction = (PaymentActionCodeType)EnumUtils.GetValue("Sale", typeof(PaymentActionCodeType));
            paymentDetail.OrderTotal = new BasicAmountType((CurrencyCodeType)EnumUtils.GetValue("USD", typeof(CurrencyCodeType)), this.TotalPrice);
            paymentDetail.OrderDescription = PaypalComment;
            List<PaymentDetailsType> paymentDetails = new List<PaymentDetailsType>();
            paymentDetails.Add(paymentDetail);

            DoExpressCheckoutPaymentRequestType request2 = new DoExpressCheckoutPaymentRequestType();
            request.Version = "104.0";
            DoExpressCheckoutPaymentRequestDetailsType requestDetails = new DoExpressCheckoutPaymentRequestDetailsType();
            requestDetails.PaymentDetails = paymentDetails;
            requestDetails.Token = token;
            requestDetails.PayerID = PayerID;
            request2.DoExpressCheckoutPaymentRequestDetails = requestDetails;

            DoExpressCheckoutPaymentReq wrapper2 = new DoExpressCheckoutPaymentReq();
            wrapper2.DoExpressCheckoutPaymentRequest = request2;
            Dictionary<string, string> sdkConfig2 = new Dictionary<string, string>();


            sdkConfig2.Add("mode", appMode);
            sdkConfig2.Add("account1.apiUsername", username);
            sdkConfig2.Add("account1.apiPassword", password);
            sdkConfig2.Add("account1.apiSignature", signature);
            PayPalAPIInterfaceServiceService service2 = new PayPalAPIInterfaceServiceService(sdkConfig);
            DoExpressCheckoutPaymentResponseType doECResponse = service2.DoExpressCheckoutPayment(wrapper2);

            this.PaymentConfirmationID = doECResponse.CorrelationID;

            return result;
        }

        /// <summary>
        /// Processes the payment. Can be used for both positive and negative transactions.
        /// </summary>
        /// <param name="payment">The payment.</param>
        /// <param name="message">The message.</param>
        /// <returns></returns>
        public override bool ProcessPayment(Payment payment, ref string message)
        {
            try
            {
                payment.Status = PaymentStatus.Processing.ToString();

                //ContractId - used as paypal PayerID
                var payerId = payment.ContractId;
                //ValidationCode - used as paypal token
                var token = payment.AuthorizationCode;

                if (string.IsNullOrEmpty(payerId) || string.IsNullOrEmpty(token))
                {
                    return false;
                }

                // Create the PayPalAPIInterfaceServiceService service object to make the API call
                var service = new PayPalAPIInterfaceServiceService((Dictionary<string, string>)Settings);

                var getECWrapper = new GetExpressCheckoutDetailsReq();
                getECWrapper.GetExpressCheckoutDetailsRequest = new GetExpressCheckoutDetailsRequestType(token);
                var getECResponse = service.GetExpressCheckoutDetails(getECWrapper);

                var request = new DoExpressCheckoutPaymentRequestType();
                var requestDetails = new DoExpressCheckoutPaymentRequestDetailsType();
                request.DoExpressCheckoutPaymentRequestDetails = requestDetails;

                requestDetails.PaymentDetails = getECResponse.GetExpressCheckoutDetailsResponseDetails.PaymentDetails;
                requestDetails.Token = token;
                requestDetails.PayerID = payerId;
                requestDetails.PaymentAction = PaymentActionCodeType.SALE;

                // Invoke the API
                var wrapper = new DoExpressCheckoutPaymentReq();
                wrapper.DoExpressCheckoutPaymentRequest = request;

                var doECResponse = service.DoExpressCheckoutPayment(wrapper);

                if (doECResponse.Ack.Equals(AckCodeType.FAILURE) || (doECResponse.Errors != null && doECResponse.Errors.Count > 0))
                {
                    return false;
                }
                else
                {
                    switch (doECResponse.DoExpressCheckoutPaymentResponseDetails.PaymentInfo[0].PaymentStatus)
                    {
                        case PaymentStatusCodeType.COMPLETED:
                            payment.Status = PaymentStatus.Completed.ToString();
                            break;
                        case PaymentStatusCodeType.INPROGRESS:
                            payment.Status = PaymentStatus.Processing.ToString();
                            break;
                        case PaymentStatusCodeType.DENIED:
                            payment.Status = PaymentStatus.Denied.ToString();
                            break;
                        case PaymentStatusCodeType.FAILED:
                            payment.Status = PaymentStatus.Failed.ToString();
                            break;
                        default:
                            payment.Status =
                                doECResponse.DoExpressCheckoutPaymentResponseDetails.PaymentInfo[0].PaymentStatus
                                    .ToString();
                            break;
                    }
                }

            }
            catch (Exception ex)
            {
                message = ex.Message;
                return false;
            }


            return true;
        }

		public override PostProcessPaymentResult PostProcessPayment(PostProcessPaymentEvaluationContext context)
		{
			var retVal = new PostProcessPaymentResult();

			if (context == null && context.Payment == null)
				throw new ArgumentNullException("paymentEvaluationContext");

			if (context.Order == null)
				throw new NullReferenceException("no order with this id");

			retVal.OrderId = context.Order.Id;

			if (!(context.Store != null && !string.IsNullOrEmpty(context.Store.Url)))
				throw new NullReferenceException("no store with this id");

			var config = GetConfigMap(context.Store);

			var service = new PayPalAPIInterfaceServiceService(config);

		    var getExpressCheckoutDetailsRequest = GetGetExpressCheckoutDetailsRequest(context.OuterId);
			try
			{
				var response = service.GetExpressCheckoutDetails(getExpressCheckoutDetailsRequest);

				CheckResponse(response);

				var status = response.GetExpressCheckoutDetailsResponseDetails.CheckoutStatus;

				if (!status.Equals("PaymentActionCompleted"))
				{
					var doExpressCheckoutPaymentRequest = GetDoExpressCheckoutPaymentRequest(response, context.OuterId);
					var doResponse = service.DoExpressCheckoutPayment(doExpressCheckoutPaymentRequest);

					CheckResponse(doResponse);

					response = service.GetExpressCheckoutDetails(getExpressCheckoutDetailsRequest);
					status = response.GetExpressCheckoutDetailsResponseDetails.CheckoutStatus;
				}
				if (status.Equals("PaymentActionCompleted"))
				{
					retVal.IsSuccess = true;
					retVal.NewPaymentStatus = PaymentStatus.Paid;
				}
			}
			catch (System.Exception ex)
			{
				retVal.Error = ex.Message;
				retVal.NewPaymentStatus = PaymentStatus.Pending;
			}

			return retVal;
		}

        // # DoExpressCheckoutPayment API Operation
        // The DoExpressCheckoutPayment API operation completes an Express Checkout transaction.
        // If you set up a billing agreement in your SetExpressCheckout API call,
        // the billing agreement is created when you call the DoExpressCheckoutPayment API operation.
        public DoExpressCheckoutPaymentResponseType DoExpressCheckoutPayment(string token, string payerId, string payment)
        {
            // Create the DoExpressCheckoutPaymentResponseType object
            DoExpressCheckoutPaymentResponseType responseDoExpressCheckoutPaymentResponseType = new DoExpressCheckoutPaymentResponseType();

            try
            {
                // Create the DoExpressCheckoutPaymentReq object
                DoExpressCheckoutPaymentReq doExpressCheckoutPayment = new DoExpressCheckoutPaymentReq();

                DoExpressCheckoutPaymentRequestDetailsType doExpressCheckoutPaymentRequestDetails = new DoExpressCheckoutPaymentRequestDetailsType();

                // The timestamped token value that was returned in the
                // `SetExpressCheckout` response and passed in the
                // `GetExpressCheckoutDetails` request.
                doExpressCheckoutPaymentRequestDetails.Token = token;

                // Unique paypal buyer account identification number as returned in
                // `GetExpressCheckoutDetails` Response
                doExpressCheckoutPaymentRequestDetails.PayerID = payerId;

                // # Payment Information
                // list of information about the payment
                List<PaymentDetailsType> paymentDetailsList = new List<PaymentDetailsType>();

                // information about the first payment
                PaymentDetailsType paymentDetails1 = new PaymentDetailsType();

                // Total cost of the transaction to the buyer. If shipping cost and tax
                // charges are known, include them in this value. If not, this value
                // should be the current sub-total of the order.
                //
                // If the transaction includes one or more one-time purchases, this field must be equal to
                // the sum of the purchases. Set this field to 0 if the transaction does
                // not include a one-time purchase such as when you set up a billing
                // agreement for a recurring payment that is not immediately charged.
                // When the field is set to 0, purchase-specific fields are ignored.
                //
                // * `Currency Code` - You must set the currencyID attribute to one of the
                // 3-character currency codes for any of the supported PayPal
                // currencies.
                // * `Amount`
                BasicAmountType orderTotal1 = new BasicAmountType(CurrencyCodeType.USD, payment);
                paymentDetails1.OrderTotal = orderTotal1;
                paymentDetails1.OrderDescription = System.Web.Configuration.WebConfigurationManager.AppSettings["PaypalDescription"];

                // How you want to obtain payment. When implementing parallel payments,
                // this field is required and must be set to `Order`. When implementing
                // digital goods, this field is required and must be set to `Sale`. If the
                // transaction does not include a one-time purchase, this field is
                // ignored. It is one of the following values:
                //
                // * `Sale` - This is a final sale for which you are requesting payment
                // (default).
                // * `Authorization` - This payment is a basic authorization subject to
                // settlement with PayPal Authorization and Capture.
                // * `Order` - This payment is an order authorization subject to
                // settlement with PayPal Authorization and Capture.
                // Note:
                // You cannot set this field to Sale in SetExpressCheckout request and
                // then change the value to Authorization or Order in the
                // DoExpressCheckoutPayment request. If you set the field to
                // Authorization or Order in SetExpressCheckout, you may set the field
                // to Sale.
                paymentDetails1.PaymentAction = PaymentActionCodeType.SALE;

                // Unique identifier for the merchant. For parallel payments, this field
                // is required and must contain the Payer Id or the email address of the
                // merchant.
                SellerDetailsType sellerDetails1 = new SellerDetailsType();
                sellerDetails1.PayPalAccountID = System.Web.Configuration.WebConfigurationManager.AppSettings["PayPalAccountID"];
                paymentDetails1.SellerDetails = sellerDetails1;

                // A unique identifier of the specific payment request, which is
                // required for parallel payments.
                paymentDetails1.PaymentRequestID = "PaymentRequest1";

                // A unique identifier of the specific payment request, which is
                // required for parallel payments.
                paymentDetailsList.Add(paymentDetails1);
                doExpressCheckoutPaymentRequestDetails.PaymentDetails = paymentDetailsList;

                DoExpressCheckoutPaymentRequestType doExpressCheckoutPaymentRequest = new DoExpressCheckoutPaymentRequestType(doExpressCheckoutPaymentRequestDetails);
                doExpressCheckoutPayment.DoExpressCheckoutPaymentRequest = doExpressCheckoutPaymentRequest;

                // Create the service wrapper object to make the API call
                PayPalAPIInterfaceServiceService service = new PayPalAPIInterfaceServiceService();

                // # API call
                // Invoke the DoExpressCheckoutPayment method in service wrapper object
                responseDoExpressCheckoutPaymentResponseType = service.DoExpressCheckoutPayment(doExpressCheckoutPayment);

                return responseDoExpressCheckoutPaymentResponseType;
            }
            // # Exception log
            catch (System.Exception ex)
//.........這裏部分代碼省略.........

    // # DoExpressCheckoutPayment API Operation
    // The DoExpressCheckoutPayment API operation completes an Express Checkout transaction. 
    // If you set up a billing agreement in your SetExpressCheckout API call, 
    // the billing agreement is created when you call the DoExpressCheckoutPayment API operation. 
    public DoExpressCheckoutPaymentResponseType DoExpressCheckoutPaymentAPIOperation()
    {
        // Create the DoExpressCheckoutPaymentResponseType object
        DoExpressCheckoutPaymentResponseType responseDoExpressCheckoutPaymentResponseType = new DoExpressCheckoutPaymentResponseType();

        try
        {
            // Create the DoExpressCheckoutPaymentReq object
            DoExpressCheckoutPaymentReq doExpressCheckoutPayment = new DoExpressCheckoutPaymentReq();

            DoExpressCheckoutPaymentRequestDetailsType doExpressCheckoutPaymentRequestDetails = new DoExpressCheckoutPaymentRequestDetailsType();

            // The timestamped token value that was returned in the
            // `SetExpressCheckout` response and passed in the
            // `GetExpressCheckoutDetails` request.
            doExpressCheckoutPaymentRequestDetails.Token = "EC-2XW434901C650622T";

            // Unique paypal buyer account identification number as returned in
            // `GetExpressCheckoutDetails` Response
            doExpressCheckoutPaymentRequestDetails.PayerID = "A9BVYX8XCR9ZQ";

            // # Payment Information
            // list of information about the payment
            List<PaymentDetailsType> paymentDetailsList = new List<PaymentDetailsType>();

            // information about the first payment
            PaymentDetailsType paymentDetails1 = new PaymentDetailsType();

            // Total cost of the transaction to the buyer. If shipping cost and tax
            // charges are known, include them in this value. If not, this value
            // should be the current sub-total of the order.
            //
            // If the transaction includes one or more one-time purchases, this field must be equal to
            // the sum of the purchases. Set this field to 0 if the transaction does
            // not include a one-time purchase such as when you set up a billing
            // agreement for a recurring payment that is not immediately charged.
            // When the field is set to 0, purchase-specific fields are ignored.
            //
            // * `Currency Code` - You must set the currencyID attribute to one of the
            // 3-character currency codes for any of the supported PayPal
            // currencies.
            // * `Amount`
            BasicAmountType orderTotal1 = new BasicAmountType(CurrencyCodeType.USD, "2.00");
            paymentDetails1.OrderTotal = orderTotal1;

            // How you want to obtain payment. When implementing parallel payments,
            // this field is required and must be set to `Order`. When implementing
            // digital goods, this field is required and must be set to `Sale`. If the
            // transaction does not include a one-time purchase, this field is
            // ignored. It is one of the following values:
            //
            // * `Sale` - This is a final sale for which you are requesting payment
            // (default).
            // * `Authorization` - This payment is a basic authorization subject to
            // settlement with PayPal Authorization and Capture.
            // * `Order` - This payment is an order authorization subject to
            // settlement with PayPal Authorization and Capture.
            // Note:
            // You cannot set this field to Sale in SetExpressCheckout request and
            // then change the value to Authorization or Order in the
            // DoExpressCheckoutPayment request. If you set the field to
            // Authorization or Order in SetExpressCheckout, you may set the field
            // to Sale.
            paymentDetails1.PaymentAction = PaymentActionCodeType.ORDER;

            // Unique identifier for the merchant. For parallel payments, this field
            // is required and must contain the Payer Id or the email address of the
            // merchant.
            SellerDetailsType sellerDetails1 = new SellerDetailsType();
            sellerDetails1.PayPalAccountID = "[email protected]";
            paymentDetails1.SellerDetails = sellerDetails1;

            // A unique identifier of the specific payment request, which is
            // required for parallel payments.
            paymentDetails1.PaymentRequestID = "PaymentRequest1";

            // information about the second payment
            PaymentDetailsType paymentDetails2 = new PaymentDetailsType();
            // Total cost of the transaction to the buyer. If shipping cost and tax
            // charges are known, include them in this value. If not, this value
            // should be the current sub-total of the order.
            //
            // If the transaction includes one or more one-time purchases, this field must be equal to
            // the sum of the purchases. Set this field to 0 if the transaction does
            // not include a one-time purchase such as when you set up a billing
            // agreement for a recurring payment that is not immediately charged.
            // When the field is set to 0, purchase-specific fields are ignored.
            //
            // * `Currency Code` - You must set the currencyID attribute to one of the
            // 3-character currency codes for any of the supported PayPal
            // currencies.
            // * `Amount`
            BasicAmountType orderTotal2 = new BasicAmountType(CurrencyCodeType.USD, "4.00");
            paymentDetails2.OrderTotal = orderTotal2;

            // How you want to obtain payment. When implementing parallel payments,
//.........這裏部分代碼省略.........

		public override PostProcessPaymentResult PostProcessPayment(PostProcessPaymentEvaluationContext context)
		{
			if (context.Order == null)
				throw new ArgumentNullException("context.Order is null");
			if (context.Payment == null)
				throw new ArgumentNullException("context.Payment is null");
			if (context.Store == null)
				throw new ArgumentNullException("context.Store is null");
			if (string.IsNullOrEmpty(context.Store.Url))
				throw new NullReferenceException("url of store not set");

			var retVal = new PostProcessPaymentResult();

			retVal.OrderId = context.Order.Id;

			var config = GetConfigMap();

			var service = new PayPalAPIInterfaceServiceService(config);

		    var getExpressCheckoutDetailsRequest = GetGetExpressCheckoutDetailsRequest(context.OuterId);
			try
			{
				var response = service.GetExpressCheckoutDetails(getExpressCheckoutDetailsRequest);

				CheckResponse(response);

				var status = response.GetExpressCheckoutDetailsResponseDetails.CheckoutStatus;

				if (!status.Equals("PaymentActionCompleted"))
				{
					var doExpressCheckoutPaymentRequest = GetDoExpressCheckoutPaymentRequest(response, context.OuterId);
					var doResponse = service.DoExpressCheckoutPayment(doExpressCheckoutPaymentRequest);

					CheckResponse(doResponse);

					response = service.GetExpressCheckoutDetails(getExpressCheckoutDetailsRequest);
					status = response.GetExpressCheckoutDetailsResponseDetails.CheckoutStatus;
				}
				if (status.Equals("PaymentActionCompleted"))
				{
					retVal.IsSuccess = true;
					retVal.OuterId = response.GetExpressCheckoutDetailsResponseDetails.PaymentDetails[0].TransactionId;
					if(PaypalPaymentActionType == PaymentActionCodeType.AUTHORIZATION)
					{
						retVal.NewPaymentStatus = context.Payment.PaymentStatus = PaymentStatus.Authorized;
						context.Payment.OuterId = retVal.OuterId;
						context.Payment.AuthorizedDate = DateTime.UtcNow;
					}
					else if (PaypalPaymentActionType == PaymentActionCodeType.SALE)
					{
						retVal.NewPaymentStatus = context.Payment.PaymentStatus = PaymentStatus.Paid;
						context.Payment.OuterId = retVal.OuterId;
						context.Payment.IsApproved = true;
						context.Payment.CapturedDate = DateTime.UtcNow;
					}
				}
				else
				{
					retVal.ErrorMessage = "Payment process not successfully ends";
				}
			}
			catch (System.Exception ex)
			{
				retVal.ErrorMessage = ex.Message;
			}

			return retVal;
		}

        /// <summary>
        /// Handles DoExpressCheckoutForParallelPayments
        /// </summary>
        /// <param name="contextHttp"></param>
        private void DoExpressCheckoutForParallelPayment(HttpContext contextHttp)
        {
            NameValueCollection parameters = contextHttp.Request.Params;

            // Configuration map containing signature credentials and other required configuration.
            // For a full list of configuration parameters refer in wiki page
            // [https://github.com/paypal/sdk-core-dotnet/wiki/SDK-Configuration-Parameters]
            Dictionary<String, String> configurationMap = Configuration.GetAcctAndConfig();

            // Creating service wrapper object to make an API call by loading configuration map.
            PayPalAPIInterfaceServiceService service = new PayPalAPIInterfaceServiceService(configurationMap);

            DoExpressCheckoutPaymentRequestType doCheckoutPaymentRequestType = new DoExpressCheckoutPaymentRequestType();
            DoExpressCheckoutPaymentRequestDetailsType details = new DoExpressCheckoutPaymentRequestDetailsType();

            // A timestamped token by which you identify to PayPal that you are processing
            // this payment with Express Checkout. The token expires after three hours.
            // If you set the token in the SetExpressCheckout request, the value of the token
            // in the response is identical to the value in the request.
            // Character length and limitations: 20 single-byte characters
            details.Token = parameters["token"];

            // Unique PayPal Customer Account identification number.
            // Character length and limitations: 13 single-byte alphanumeric characters
            details.PayerID = parameters["payerID"];

            // (Optional) How you want to obtain payment. If the transaction does not include a one-time purchase, this field is ignored.
            // It is one of the following values:
            // Sale – This is a final sale for which you are requesting payment (default).
            // Authorization – This payment is a basic authorization subject to settlement with PayPal Authorization and Capture.
            // Order – This payment is an order authorization subject to settlement with PayPal Authorization and Capture.
            // Note:
            // You cannot set this field to Sale in SetExpressCheckout request and then change
            // this value to Authorization or Order in the DoExpressCheckoutPayment request.
            // If you set the field to Authorization or Order in SetExpressCheckout, you may set the field to Sale.
            // Character length and limitations: Up to 13 single-byte alphabetic characters
            // This field is deprecated. Use PaymentAction in PaymentDetailsType instead.
            details.PaymentAction = (PaymentActionCodeType)Enum.Parse(typeof(PaymentActionCodeType), parameters["paymentType"]);

            PaymentDetailsType paymentDetails1 = new PaymentDetailsType();
            BasicAmountType orderTotal1 = new BasicAmountType();
            orderTotal1.value = parameters["orderTotal"];

            //PayPal uses 3-character ISO-4217 codes for specifying currencies in fields and variables.
            orderTotal1.currencyID = (CurrencyCodeType)Enum.Parse(typeof(CurrencyCodeType), parameters["currencyCode"]);

            // (Required) The total cost of the transaction to the buyer.
            // If shipping cost (not applicable to digital goods) and tax charges are known,
            // include them in this value. If not, this value should be the current sub-total
            // of the order. If the transaction includes one or more one-time purchases, this
            // field must be equal to the sum of the purchases. Set this field to 0 if the
            // transaction does not include a one-time purchase such as when you set up a
            // billing agreement for a recurring payment that is not immediately charged.
            // When the field is set to 0, purchase-specific fields are ignored.
            // For digital goods, the following must be true:
            // total cost > 0
            // total cost <= total cost passed in the call to SetExpressCheckout
            // Note:
            // You must set the currencyID attribute to one of the 3-character currency codes
            // for any of the supported PayPal currencies.
            // When multiple payments are passed in one transaction, all of the payments must
            // have the same currency code.
            // Character length and limitations: Value is a positive number which cannot
            // exceed $10,000 USD in any currency. It includes no currency symbol.
            // It must have 2 decimal places, the decimal separator must be a period (.),
            // and the optional thousands separator must be a comma (,).
            paymentDetails1.OrderTotal = orderTotal1;

            SellerDetailsType sellerDetailsType1 = new SellerDetailsType();
            sellerDetailsType1.PayPalAccountID = parameters["receiverEmail_0"];

            paymentDetails1.PaymentRequestID = parameters["paymentRequestID_0"];
            paymentDetails1.SellerDetails = sellerDetailsType1;

            PaymentDetailsType paymentDetails2 = new PaymentDetailsType();
            BasicAmountType orderTotal2 = new BasicAmountType();
            orderTotal2.value = parameters["orderTotal"];

            //PayPal uses 3-character ISO-4217 codes for specifying currencies in fields and variables.
            orderTotal2.currencyID = (CurrencyCodeType)Enum.Parse(typeof(CurrencyCodeType), parameters["currencyCode"]);

            // (Required) The total cost of the transaction to the buyer.
            // If shipping cost (not applicable to digital goods) and tax charges are known,
            // include them in this value. If not, this value should be the current sub-total
            // of the order. If the transaction includes one or more one-time purchases, this
            // field must be equal to the sum of the purchases. Set this field to 0 if the
            // transaction does not include a one-time purchase such as when you set up a
            // billing agreement for a recurring payment that is not immediately charged.
            // When the field is set to 0, purchase-specific fields are ignored.
            // For digital goods, the following must be true:
            // total cost > 0
            // total cost <= total cost passed in the call to SetExpressCheckout
            // Note:
            // You must set the currencyID attribute to one of the 3-character currency codes
            // for any of the supported PayPal currencies.
            // When multiple payments are passed in one transaction, all of the payments must
//.........這裏部分代碼省略.........

        private ActionResult ProcessingResult_PayPal(ProcessingResultModel model)
        {
            if (model == null)
            {
                throw new System.ArgumentNullException("model");
            }
            PaymentResultContext context = new PaymentResultContext();
            context.Order = model.order;
            if (model.success == true)
            {
                if (model.token == null)
                {
                    throw new System.ArgumentNullException("token");
                }
                if (model.payerID == null)
                {
                    throw new System.ArgumentNullException("payerID");
                }
                GetExpressCheckoutDetailsRequestType request = new GetExpressCheckoutDetailsRequestType();
                request.Version = "104.0";
                request.Token = model.token;
                GetExpressCheckoutDetailsReq wrapper = new GetExpressCheckoutDetailsReq();
                wrapper.GetExpressCheckoutDetailsRequest = request;
                System.Collections.Generic.Dictionary<string, string> config = PaymentController.PayPal_CreateConfig();
                PayPalAPIInterfaceServiceService service = new PayPalAPIInterfaceServiceService(config);
                GetExpressCheckoutDetailsResponseType ecResponse = service.GetExpressCheckoutDetails(wrapper);
                if (ecResponse == null)
                {
                    throw new System.Exception("checkout details result is null");
                }
                if (ecResponse.Errors != null && ecResponse.Errors.Count > 0)
                {
                    ecResponse.Errors.ForEach(delegate (ErrorType m)
                    {
                        context.Errors.Add(m.LongMessage);
                    });
                }
                if (ecResponse.Ack == AckCodeType.SUCCESS || ecResponse.Ack == AckCodeType.SUCCESSWITHWARNING)
                {
                    GetExpressCheckoutDetailsResponseDetailsType details = ecResponse.GetExpressCheckoutDetailsResponseDetails;
                    if (details == null)
                    {
                        throw new System.Exception("details object is null");
                    }
                    if (string.IsNullOrEmpty(details.InvoiceID))
                    {
                        throw new System.Exception("invoiceID not found");
                    }
                    if (details.PaymentDetails == null)
                    {
                        throw new System.Exception("payment details is null");
                    }
                    System.Collections.Generic.List<PaymentDetailsType> paymentDetails = new System.Collections.Generic.List<PaymentDetailsType>();
                    foreach (PaymentDetailsType payment in details.PaymentDetails)
                    {
                        paymentDetails.Add(new PaymentDetailsType
                        {
                            NotifyURL = null,
                            PaymentAction = payment.PaymentAction,
                            OrderTotal = payment.OrderTotal
                        });
                    }
                    DoExpressCheckoutPaymentRequestType paymentRequest = new DoExpressCheckoutPaymentRequestType();
                    paymentRequest.Version = "104.0";
                    paymentRequest.DoExpressCheckoutPaymentRequestDetails = new DoExpressCheckoutPaymentRequestDetailsType
                    {
                        PaymentDetails = paymentDetails,
                        Token = model.token,
                        PayerID = model.payerID
                    };
                    DoExpressCheckoutPaymentResponseType doECResponse = service.DoExpressCheckoutPayment(new DoExpressCheckoutPaymentReq
                    {
                        DoExpressCheckoutPaymentRequest = paymentRequest
                    });
                    if (doECResponse == null)
                    {
                        throw new System.Exception("payment result is null");
                    }
                    if (doECResponse.Errors != null && doECResponse.Errors.Count > 0)
                    {
                        doECResponse.Errors.ForEach(delegate (ErrorType m)
                        {
                            context.Errors.Add(m.LongMessage);
                        });
                    }
                    if (doECResponse.Ack == AckCodeType.SUCCESS || doECResponse.Ack == AckCodeType.SUCCESSWITHWARNING)
                    {
                        ConfirmInvoiceResult invoiceResult = BookingProvider.ConfirmInvoice(details.InvoiceID.Trim());
                        Tracing.DataTrace.TraceEvent(TraceEventType.Information, 0, "PAYPAL transaction: invoice: '{0}', invoice confirmation: '{1}'", new object[]
                        {
                            details.InvoiceID,
                            invoiceResult.IsSuccess ? "SUCCESS" : "FAILED"
                        });
                        if (!invoiceResult.IsSuccess)
                        {
                            context.Errors.Add(string.Format("invoice confirmation error: {0}", invoiceResult.ErrorMessage));
                        }
                        else
                        {
                            context.Success = true;
//.........這裏部分代碼省略.........