Hi Kartik 

 Thanks for your help could you please help me more i cannot implement that refund and get balance through my class while i called the api method do direct payemnt in itself .

 Please find below my apex code .

Thanks in advance .

Regards,

Sorabh 

public class CT_PaypalProcessor {
public string amount{get; set;}
public String result {set;get;}
public string FirstName{get; set; }
public string LastName{get; set; }
public string Addy1{get; set; }
public string Addy2{get; set; }
public string Country{get; set; }
public string CardType{get; set; }
public string CardNo{get; set; }
public string expMo{get; set; }
public string expYe{get; set; }
public string CVV{get; set; }
public string city{get; set; }
public string state{get; set; }
public string zip{get; set; }
public string payer{ get; set; }
public string transid {get; set;}
public string message {get; set; }
public string err {get; set; }
public string rawResponse {get; set; }

public CT_PaypalProcessor(){
// city = 'NYC';
state = 'NY';
zip = '23233';
// CVV = '369';
expYe = '2012';
expMo = '03';
// CardNo = '4169826260837999';
// CardType = 'Visa';
// FirstName = 'saurav';
// LastName = 'khurana';
Country = 'US';
// Addy1 = 'G-13 Noida';
Addy2 = '';
payer = 'test@cloudsteer.com';
//amount = '500';
}

public void loadPage() {
system.debug('---------Pay()-----------' + this.pay());
}

public String doDirectPayment()
{

Http h = new Http();
HttpRequest req = new HttpRequest();
String url = 'https://api-3t.sandbox.paypal.com/2.0/';
string un = 'saurav_1331792090_biz_api1.gmail.com';
string pw = '1331792130';
string sig = 'AIfJWYD9IJU3IITi0kVhvZ-J-c2nA5Il5mGirwYMqXMxDT8fB34iiDOd';


String doDirectRequest;
doDirectRequest = '<soap:Envelope xmlns:soap=' + '\'' + 'http://schemas.xmlsoap.org/soap/envelope/' + '\'' + ' xmlns:xsi=' + '\''+ 'http://www.w3.org/2001/XMLSchema-instance' + '\'' + ' xmlns:xsd=' + '\''+ 'http://www.w3.org/2001/XMLSchema' + '\'' + '>';
doDirectRequest += '<soap:Header><RequesterCredentials xmlns="urn:ebay:api:PayPalAPI"><Credentials xmlns="urn:ebay:apis:eBLBaseComponents">';
doDirectRequest += '<Username>' + un + '</Username><ebl:Password xmlns:ebl="urn:ebay:apis:eBLBaseComponents">' + pw;
doDirectRequest += '</ebl:Password><Signature>' + sig + '</Signature>';
doDirectRequest += '</Credentials></RequesterCredentials></soap:Header><soap:Body><DoDirectPaymentReq xmlns="urn:ebay:api:PayPalAPI">';
doDirectRequest += '<DoDirectPaymentRequest><Version xmlns="urn:ebay:apis:eBLBaseComponents">1.00</Version>';
doDirectRequest += '<DoDirectPaymentRequestDetails xmlns="urn:ebay:apis:eBLBaseComponents">';
doDirectRequest += '<PaymentAction>Sale</PaymentAction><PaymentDetails><OrderTotal currencyID="USD">' + amount + '</OrderTotal>';
doDirectRequest += '<ShipToAddress><Name>' + FirstName + ' ' + LastName + '</Name><Street1>' + Addy1 + '</Street1><Street2>' +Addy2 + '</Street2>';
doDirectRequest += '<CityName>' + city + '</CityName><StateOrProvince>' + state + '</StateOrProvince><PostalCode>' + zip + '</PostalCode>';
doDirectRequest += '<Country>' + country + '</Country></ShipToAddress>';
doDirectRequest += '</PaymentDetails><CreditCard><CreditCardType>' + CardType + '</CreditCardType><CreditCardNumber>' + CardNo + '</CreditCardNumber>';
doDirectRequest += '<ExpMonth>' + expMo + '</ExpMonth><ExpYear>' + expYe + '</ExpYear><CardOwner><PayerStatus>verified</PayerStatus>';
doDirectRequest += '<PayerName><FirstName>' + FirstName+ '</FirstName><LastName>' + LastName + '</LastName></PayerName><PayerCountry>' + country + '</PayerCountry>';
doDirectRequest += '<Address><Street1>' + Addy1 + '</Street1><Street2>' + Addy2 + '</Street2><CityName>' + city + '</CityName>';
doDirectRequest += '<StateOrProvince>' + state + '</StateOrProvince><Country>' + country + '</Country><PostalCode>' + zip + '</PostalCode></Address>';
doDirectRequest += '</CardOwner><CVV2>' + CVV + '</CVV2></CreditCard></DoDirectPaymentRequestDetails>';
doDirectRequest += '</DoDirectPaymentRequest></DoDirectPaymentReq></soap:Body></soap:Envelope>';

req.setBody(doDirectRequest);

req.setEndpoint(url);
req.setMethod('POST');
req.setHeader('Content-length', '1753' );
req.setHeader('Content-Type', 'text/xml;charset=UTF-8');
req.setHeader('SOAPAction','');
req.setHeader('Host','api-aa.sandbox.paypal.com');
HttpResponse res = h.send(req);

String xml = res.getBody();
rawResponse = xml;
system.debug('---------xml-----------' + rawResponse);
XmlStreamReader reader = res.getXmlStreamReader();
result = readXMLResponse(reader,'Ack');
system.debug('---------result-----------' + result);
reader = res.getXmlStreamReader();
err = readXMLResponse(reader, 'LongMessage');

if (result == 'Success')
{
reader = res.getXmlStreamReader();
transid = readXMLResponse(reader, 'TransactionID');
system.debug('---------transid-----------' + transid);
}
else
{
result = err;
}
return result;
}

public String readXMLResponse(XmlStreamReader reader, String sxmltag)
{
string retValue; // Read through the XML
while(reader.hasNext())
{
if (reader.getEventType() == XmlTag.START_ELEMENT)
{
if (reader.getLocalName() == sxmltag) {
reader.next();
if (reader.getEventType() == XmlTag.characters)
{
retValue = reader.getText();
}
}
}
reader.next();
}
return retValue;
}

public String pay(){

err = '';
if (FirstName == '')
err = err + 'You must enter a First Name.\n';
if (LastName == '')
err = err + 'You must enter a Last Name.\n';
if (Addy1 == '')
err = err + 'You must enter an Address.\n';
if (city == '')
err = err + 'You must enter a City.\n';
if (state == '')
err = err + 'You must enter a State.\n';
if (zip == '')
err = err + 'You must enter a Zip.\n';
if (CardNo == '')
err = err + 'You must enter a Credit Card Number.\n';
if (expMo.length() != 2)
err = err + 'Expiration month must be in the format MM.\n';
if (expYe.length() != 4)
err = err + 'Expiration year must be in the format YYYY.\n';

if (amount == '0')
{
err += 'Amount 0 can not process.\n';
message = err;
}
message = err;
if (err == '')
{
message = doDirectPayment();
}

if (message == 'Success')
{

}
else
{
//pr = null;
}
return message;
}

}