使用ASP.net NVP API时与Paypal SETEX pressCheckout问题 [英] Problems with Paypal SetExpressCheckout when using NVP API in ASP.net

问题描述

我实现我的Facebook游戏和Paypal的前preSS结账支付服务之间的融合。

Hi, I am implementing the intergration between my Facebook game and Paypal's express checkout payment service.

我的网站是在ASP.net开发，我使用NVP API的集成。

My website is developed in ASP.net and I am using NVP API for the integration.

我的问题是，我不断收到10400错误 ​​- 订单总计丢失

我的code是：

// Set the key/value pairs to send in the request
var kvpl = new List<KeyValuePair<string, string>>();
kvpl.Add(new KeyValuePair<string, string>("PAYMENTREQUEST_0_PAYMENTACTION", "Sale"));
kvpl.Add(new KeyValuePair<string, string>("PAYMENTREQUEST_0_AMT", "23.00"));
kvpl.Add(new KeyValuePair<string, string>("PAYMENTREQUEST_0_ITEMAMT", "15.00"));
kvpl.Add(new KeyValuePair<string, string>("PAYMENTREQUEST_0_TAXAMT", "5.00"));
kvpl.Add(new KeyValuePair<string, string>("PAYMENTREQUEST_0_SHIPPINGAMT", "1.00"));
kvpl.Add(new KeyValuePair<string, string>("PAYMENTREQUEST_0_HANDLINGAMT", "1.00"));
kvpl.Add(new KeyValuePair<string, string>("PAYMENTREQUEST_0_INSURANCEAMT", "1.00"));
kvpl.Add(new KeyValuePair<string, string>("PAYMENTREQUEST_0_CURRENCYCODE", "ILS"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_NAME0", "The name of product 1"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_NUMBER0", "5543312"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_DESC0", "The description of product 1"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_AMT0", "10.00"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_QTY0", "1"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_NAME1", "The name of product 2"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_NUMBER1", "4431234"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_DESC1", "The description of product 2"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_AMT1", "5.00"));
kvpl.Add(new KeyValuePair<string, string>("L_PAYMENTREQUEST_0_QTY1", "1"));     
kvpl.Add(new KeyValuePair<string, string>("ALLOWNOTE", "1"));
kvpl.Add(new KeyValuePair<string, string>("NOSHIPPING", "1"));

// SetExpressCheckout
bool ret = test.ShortcutExpressCheckout(amt, ref token, ref retMsg, kvpl);

// Check return value
if (ret)
{
    // Success, store the token in the session and redirect to Paypal
    session["token"] = token;
    Response.Redirect( retMsg );
}
else
{
    // Something went wrong
    Response.Redirect("APIError.aspx?" + retMsg);
}

的ShortcutEx pressCheckout方法的code是：

public bool ShortcutExpressCheckout(string amt, ref string token, ref string retMsg, List<KeyValuePair<string, string>> customParams)
{
    string host = "www.paypal.com";
    if (bSandbox)
    {
        pendpointurl = "https://api-3t.sandbox.paypal.com/nvp";
        host = "www.sandbox.paypal.com";
    }

    string returnURL = "http://localhost:50020/" + "ConfirmPayment.aspx";
    string cancelURL = "http://localhost:50020/" + "CancelPayment.aspx";

    var encoder = new NVPCodec();
    encoder["VERSION"] = "72.0";
    encoder["METHOD"] = "SetExpressCheckout";        
    encoder["RETURNURL"] = returnURL;
    encoder["CANCELURL"] = cancelURL;

    if (customParams != null)
    {
        customParams.ForEach(kvp => encoder[kvp.Key] = kvp.Value);
    }

    string pStrrequestforNvp = encoder.Encode();
    string pStresponsenvp = HttpCall(pStrrequestforNvp);

    var decoder = new NVPCodec();
    decoder.Decode(pStresponsenvp);

    string strAck = decoder["ACK"].ToLower();
    if (strAck != null && (strAck == "success" || strAck == "successwithwarning"))
    {
        token = decoder["TOKEN"];

        string ECURL = "https://" + host + "/cgi-bin/webscr?cmd=_express-checkout" + "&token=" + token;

        retMsg = ECURL;
        return true;
    }
    else
    {
        retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
                 "Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
                 "Desc2=" + decoder["L_LONGMESSAGE0"];

        return false;
    }
}

这是由code产生的请求是：

The request that generated by the code is:

 METHOD=SetExpressCheckout&
 VERSION=72.0&
 RETURNURL=[removed]&
 CANCELURL=[removed]&
 PAYMENTREQUEST_0_PAYMENTACTION=Sale&
 PAYMENTREQUEST_0_AMT=23.00&
 PAYMENTREQUEST_0_ITEMAMT=15.00&
 PAYMENTREQUEST_0_TAXAMT=5.00&
 PAYMENTREQUEST_0_SHIPPINGAMT=1.00&
 PAYMENTREQUEST_0_HANDLINGAMT=1.00&
 PAYMENTREQUEST_0_INSURANCEAMT=1.00&
 PAYMENTREQUEST_0_CURRENCYCODE=ILS&
 L_PAYMENTREQUEST_0_NAME0=The+name+of+product+1&
 L_PAYMENTREQUEST_0_NUMBER0=5543312&
 L_PAYMENTREQUEST_0_DESC0=The+description+of+product+1&
 L_PAYMENTREQUEST_0_AMT0=10&L_PAYMENTREQUEST_0_QTY0=1&
 L_PAYMENTREQUEST_0_NAME1=The+name+of+product+2&
 L_PAYMENTREQUEST_0_NUMBER1=4431234&
 L_PAYMENTREQUEST_0_DESC1=The+description+of+product+2&
 L_PAYMENTREQUEST_0_AMT1=5.00&
 L_PAYMENTREQUEST_0_QTY1=1.00&
 ALLOWNOTE=1&
 NOSHIPPING=1

，而且我得到的回应是：

TIMESTAMP=2011%2d09%2d01T12%3a23%3a19Z&
CORRELATIONID=cf89eeaa101ae&
ACK=Failure&
VERSION=2%2e3&
BUILD=2085867&
L_ERRORCODE0=10400&
  L_SHORTMESSAGE0=Transaction%20refused%20because%20of%20an%20invalid%20argument%2e%20See%20additional%20error%20messages%20for%20details%2e&
L_LONGMESSAGE0=Order%20total%20is%20missing%2e&
L_SEVERITYCODE0=Error

我回顾了贝宝提供的文件和很多帖子关于这个问题，但我找不到什么我做错了。

I reviewed the documentation that paypal provides and many posts about this issue but I couldn't find what I am doing wrong.

任何帮助将AP preciated，

Any help will be appreciated,

Koby

推荐答案

您订单总额参数丢失，因为你使用的是旧版本。告诉你的API请求，以及您的回复，不匹配。

Your Order Total parameter is missing, because you're using an old version. The API request you show, and your response, do not match.

您实际上是提交2.3版本，而不是版本72.0 ..看到你的API响应：VERSION = 2％2E3和放大器;

You're actually submitting version 2.3, not version 72.0.. see your API response: "VERSION=2%2e3& "

下面的请求和响应为我工作

The below request and response worked for me

API请求

USER=********************
PWD=********************
SIGNATURE=********************
METHOD=SetExpressCheckout 
VERSION=72.0 
RETURNURL=******************** 
CANCELURL=********************
PAYMENTREQUEST_0_PAYMENTACTION=Sale 
PAYMENTREQUEST_0_AMT=23.00 
PAYMENTREQUEST_0_ITEMAMT=15.00 
PAYMENTREQUEST_0_TAXAMT=5.00 
PAYMENTREQUEST_0_SHIPPINGAMT=1.00 
PAYMENTREQUEST_0_HANDLINGAMT=1.00 
PAYMENTREQUEST_0_INSURANCEAMT=1.00 
PAYMENTREQUEST_0_CURRENCYCODE=ILS 
L_PAYMENTREQUEST_0_NAME0=The+name+of+product+1 
L_PAYMENTREQUEST_0_NUMBER0=5543312 
L_PAYMENTREQUEST_0_DESC0=The+description+of+product+1 
L_PAYMENTREQUEST_0_AMT0=10&L_PAYMENTREQUEST_0_QTY0=1 
L_PAYMENTREQUEST_0_NAME1=The+name+of+product+2 
L_PAYMENTREQUEST_0_NUMBER1=4431234 
L_PAYMENTREQUEST_0_DESC1=The+description+of+product+2 
L_PAYMENTREQUEST_0_AMT1=5.00 
L_PAYMENTREQUEST_0_QTY1=1.00 
ALLOWNOTE=1 
NOSHIPPING=1 

API响应

TOKEN=EC-3UE641439J019845E
TIMESTAMP=2011-09-01T17:13:17Z
CORRELATIONID=4f7e60c2d70aa
ACK=Success
VERSION=72.0
BUILD=2085867

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