(Unicode C++) CardConnect Signature Capture

Demonstrates how to upload a BMP image of a handwritten signature.

This signature capture service augments an existing authorization record with the provided signature data. ...

See https://developer.cardconnect.com/cardconnect-api?lang=json#signature-capture

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#include <CkHttpW.h>
#include <CkJsonObjectW.h>
#include <CkBinDataW.h>
#include <CkGzipW.h>

void ChilkatSample(void)
    {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttpW http;
    bool success;

    http.put_BasicAuth(true);
    http.put_Login(L"API_USERNAME");
    http.put_Password(L"API_PASSWORD");

    // Build and send the following JSON:

    // {
    //   "merchid": "MERCHANT_ID",
    //   "retref": "112989260941",
    //   "signature": "BASE64_GZIPPED_BMP_DATA"
    // }

    CkJsonObjectW json;
    json.UpdateString(L"merchid",L"MERCHANT_ID");
    json.UpdateString(L"retref",L"106631225001");

    // Load the .bmp containing a 200px x 100px signature.
    CkBinDataW bd;
    success = bd.LoadFile(L"qa_data/bmp/signature.bmp");
    // Gzip compress.
    CkGzipW gzip;
    success = gzip.CompressBd(bd);
    // Add to the JSON in base64 format
    json.UpdateString(L"signature",bd.getEncoded(L"base64"));

    const wchar_t *url = L"https://<site>.cardconnect.com:<port>/cardconnect/rest/sigcap";
    const wchar_t *responseStr = http.putText(url,json.emit(),L"utf-8",L"application/json",false,false);
    if (http.get_LastMethodSuccess() == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    // A response status of 200 indicates potential success.  The JSON response body
    // must be examined to determine if it was truly successful or an error.
    wprintf(L"response status code = %d\n",http.get_LastStatus());

    CkJsonObjectW jsonResp;
    jsonResp.Load(responseStr);
    jsonResp.put_EmitCompact(false);

    wprintf(L"response JSON:\n");
    wprintf(L"%s\n",jsonResp.emit());

    // A successful response looks like this:

    // {
    //   "resptext": "signature stored",
    //   "retref": "106631225001",
    //   "respcode": "02",
    //   "merchid": "MERCHANT_ID"
    // }
    }