C++

Global Payments Card Authorization

See more Global Payments Examples

Demonstrates how to send a card payments authorization request. C++

#include <CkHttp.h>
#include <CkDateTime.h>
#include <CkPrng.h>
#include <CkCrypt2.h>
#include <CkStringBuilder.h>
#include <CkXml.h>
#include <CkHttpResponse.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    CkHttp http;

    //  if you don't have a Client ID yet you can still quickly test some basic request types using the following URL and credentials:

    //  Test URL - https://test.realexpayments.com/epage-remote.cgi
    //  Client ID: realexsandbox
    //  Shared Secret: Po8lRRT67a
    const char *testUrl = "https://test.realexpayments.com/epage-remote.cgi";
    const char *clientID = "realexsandbox";
    const char *sharedSecret = "Po8lRRT67a";

    const char *amount = "1001";
    const char *currency = "EUR";
    const char *cardNumber = "4263970000005262";

    //  We'll be sending the following XML in the body of the request:

    //  <?xml version="1.0" encoding="UTF-8"?>
    //  <request type="auth" timestamp="20180613141207">
    //    <merchantid>MerchantId</merchantid>
    //    <account>internet</account>
    //    <channel>ECOM</channel>
    //    <orderid>N6qsk4kYRZihmPrTXWYS6g</orderid>
    //    <amount currency="EUR">1001</amount>
    //    <card>
    //      <number>4263970000005262</number>
    //      <expdate>0425</expdate>
    //      <chname>James Mason</chname>
    //      <type>VISA</type>
    //      <cvn>
    //        <number>123</number>
    //        <presind>1</presind>
    //      </cvn>
    //    </card>
    //    <autosettle flag="1"/>
    //    <sha1hash>87707637a34ba651b6185718c863abc64b673f20</sha1hash>
    //  </request>

    //  Use this online tool to generate code from sample XML: 
    //  Generate Code to Create XML

    //  Get the current date/time in this format:  20180613141207
    CkDateTime dt;
    dt.SetFromCurrentSystemTime();
    const char *dtStr = dt.getAsIso8601("YYYYMMDDhhmmss",true);

    //  Generate a unique order ID
    CkPrng prng;
    const char *orderId = prng.genRandom(32,"base64url");

    //  Compute the sha1hash
    CkCrypt2 crypt;
    crypt.put_HashAlgorithm("sha1");
    crypt.put_EncodingMode("hexlower");

    CkStringBuilder sbA;
    sbA.Append("timestamp.merchantid.orderid.amount.currency.cardnumber");
    int numReplaced = sbA.Replace("timestamp",dtStr);
    numReplaced = sbA.Replace("merchantid",clientID);
    numReplaced = sbA.Replace("orderid",orderId);
    numReplaced = sbA.Replace("amount",amount);
    numReplaced = sbA.Replace("currency",currency);
    numReplaced = sbA.Replace("cardnumber",cardNumber);

    const char *hashA = crypt.hashStringENC(sbA.getAsString());

    CkStringBuilder sbB;
    sbB.Append(hashA);
    sbB.Append(".");
    sbB.Append(sharedSecret);

    const char *hashB = crypt.hashStringENC(sbB.getAsString());

    CkXml xml;
    xml.put_Tag("request");
    xml.AddAttribute("type","auth");
    xml.AddAttribute("timestamp",dtStr);
    xml.UpdateChildContent("merchantid",clientID);
    xml.UpdateChildContent("account","internet");
    xml.UpdateChildContent("channel","ECOM");
    xml.UpdateChildContent("orderid",orderId);
    xml.UpdateAttrAt("amount",true,"currency",currency);
    xml.UpdateChildContent("amount",amount);
    xml.UpdateChildContent("card|number",cardNumber);
    xml.UpdateChildContent("card|expdate","0425");
    xml.UpdateChildContent("card|chname","James Mason");
    xml.UpdateChildContent("card|type","VISA");
    xml.UpdateChildContent("card|cvn|number","123");
    xml.UpdateChildContent("card|cvn|presind","1");
    xml.UpdateAttrAt("autosettle",true,"flag","1");
    xml.UpdateChildContent("sha1hash",hashB);

    CkHttpResponse resp;
    success = http.HttpStr("POST",testUrl,xml.getXml(),"utf-8","application/xml",resp);
    if (success == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Response Status Code: " << resp.get_StatusCode() << "\r\n";

    std::cout << "Response Body:" << "\r\n";
    std::cout << resp.bodyStr() << "\r\n";

    if (resp.get_StatusCode() != 200) {
        std::cout << "Failed." << "\r\n";
        return;
    }

    //  A status code of 200 indicates we received an XML response, but it could be an error message.
    //  Here's an example of an error response:

    //  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
    //  <response timestamp="20200418142356">
    //      <orderid>N6qsk4kYRZihmPrTXWYS6g</orderid>
    //      <result>508</result>
    //      <message>Invalid timestamp: '{' Value exceeds allowable limit: '}'</message>
    //  </response>

    //  We need to check the "result" within the XML.
    xml.LoadXml(resp.bodyStr());

    int result = xml.GetChildIntValue("result");
    std::cout << "result = " << result << "\r\n";

    //  A successful result looks like this:

    //  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
    //  <response timestamp="20200418145519">
    //      <merchantid>realexsandbox</merchantid>
    //      <account>internet</account>
    //      <orderid>Cw93I1nFWVZuaATh46qMUCBlCcfrOvLo65C2cq5X-AY</orderid>
    //      <result>00</result>
    //      <authcode>L3pHww</authcode>
    //      <message>AUTH CODE: L3pHww</message>
    //      <pasref>96838535689610806</pasref>
    //      <cvnresult>M</cvnresult>
    //      <timetaken>87</timetaken>
    //      <authtimetaken>67</authtimetaken>
    //      <batchid>6322506</batchid>
    //      <sha1hash>2fd2f15f97f1775779fe9bda536dc8317a4b39f6</sha1hash>
    //  </response>

    if (result == 0) {
        std::cout << "authcode = " << xml.getChildContent("authcode") << "\r\n";
        std::cout << "Success." << "\r\n";

    }
    else {
        std::cout << "Failed." << "\r\n";
    }
    }