您好， 我正在实施我的Facebook游戏和Paypal的快速结账支付服务之间的整合。
我的网站是在ASP.net中开发的，我正在使用NVP API进行集成。
我的问题是我一直收到10400错误 - 订单总数丢失。
我的代码是：
// 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);
}
ShortcutExpressCheckout方法的代码是：
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;
}
}
代码生成的请求是：
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
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
我查看了paypal提供的文档和许多关于此问题的帖子，但我找不到我做错了什么。
任何帮助将不胜感激，
Koby
答案 0 :(得分：19)
您的订单总计参数丢失，因为您使用的是旧版本。您显示的API请求与您的响应不匹配。
您实际上是在提交版本2.3而不是版本72.0 ..请参阅您的API响应：“VERSION = 2％2e3＆amp;”
以下请求和回复对我有用
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