(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 <C_CkHttpW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkBinDataW.h>
#include <C_CkGzipW.h>

void ChilkatSample(void)
    {
    HCkHttpW http;
    BOOL success;
    HCkJsonObjectW json;
    HCkBinDataW bd;
    HCkGzipW gzip;
    const wchar_t *url;
    const wchar_t *responseStr;
    HCkJsonObjectW jsonResp;

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

    http = CkHttpW_Create();

    CkHttpW_putBasicAuth(http,TRUE);
    CkHttpW_putLogin(http,L"API_USERNAME");
    CkHttpW_putPassword(http,L"API_PASSWORD");

    // Build and send the following JSON:

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

    json = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateString(json,L"merchid",L"MERCHANT_ID");
    CkJsonObjectW_UpdateString(json,L"retref",L"106631225001");

    // Load the .bmp containing a 200px x 100px signature.
    bd = CkBinDataW_Create();
    success = CkBinDataW_LoadFile(bd,L"qa_data/bmp/signature.bmp");
    // Gzip compress.
    gzip = CkGzipW_Create();
    success = CkGzipW_CompressBd(gzip,bd);
    // Add to the JSON in base64 format
    CkJsonObjectW_UpdateString(json,L"signature",CkBinDataW_getEncoded(bd,L"base64"));

    url = L"https://<site>.cardconnect.com:<port>/cardconnect/rest/sigcap";
    responseStr = CkHttpW_putText(http,url,CkJsonObjectW_emit(json),L"utf-8",L"application/json",FALSE,FALSE);
    if (CkHttpW_getLastMethodSuccess(http) == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(json);
        CkBinDataW_Dispose(bd);
        CkGzipW_Dispose(gzip);
        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",CkHttpW_getLastStatus(http));

    jsonResp = CkJsonObjectW_Create();
    CkJsonObjectW_Load(jsonResp,responseStr);
    CkJsonObjectW_putEmitCompact(jsonResp,FALSE);

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

    // A successful response looks like this:

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


    CkHttpW_Dispose(http);
    CkJsonObjectW_Dispose(json);
    CkBinDataW_Dispose(bd);
    CkGzipW_Dispose(gzip);
    CkJsonObjectW_Dispose(jsonResp);

    }