Sample code for 30+ languages & platforms
Unicode C

CardConnect Capture Level 3 Data

See more CardConnect Examples

Demonstrates how to send a CardConnect Capture request with Lavel 3 line item data.
If available, Level 3 line item data can be sent with the capture request, particularly for any commercial or corporate payment cards. To qualify for Level 3 Interchange rates, Level 2 data must also be provided. ...

See https://developer.cardconnect.com/cardconnect-api#capture-level-3-data

Chilkat Unicode C Downloads

Unicode C
#include <C_CkHttpW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkHttpResponseW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttpW http;
    HCkJsonObjectW json;
    const wchar_t *url;
    HCkHttpResponseW resp;
    HCkJsonObjectW jsonResp;
    const wchar_t *amount;
    const wchar_t *resptext;
    const wchar_t *setlstat;
    const wchar_t *commcard;
    const wchar_t *respcode;
    const wchar_t *batchid;
    const wchar_t *merchid;
    const wchar_t *token;
    const wchar_t *authcode;
    const wchar_t *respproc;
    const wchar_t *retref;
    const wchar_t *respstat;
    const wchar_t *account;

    success = FALSE;

    // 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:

    // The "retref" is the value returned in the JSON response for the Authorization request.

    // {
    //   "retref": "2880000333",
    //   "shiptozip": "11111-1111",
    //   "shipfromzip": "99999-9999",
    //   "amount": "596.00",
    //   "items": [
    //     {
    //       "discamnt": "0",
    //       "unitcost": "900",
    //       "uom": "CS",
    //       "lineno": "1",
    //       "description": "DESCRIPTION-1",
    //       "taxamnt": "117",
    //       "quantity": "1000",
    //       "upc": "UPC-1",
    //       "netamnt": "150",
    //       "material": "MATERIAL-1"
    //     },
    //     {
    //       "discamnt": "0",
    //       "unitcost": "450",
    //       "uom": "CS",
    //       "lineno": "2",
    //       "description": "DESCRIPTION-2",
    //       "taxamnt": "117",
    //       "quantity": "2000",
    //       "upc": "UPC-1",
    //       "netamnt": "300",
    //       "material": "MATERIAL-2"
    //     }
    //   ],
    //   "taxamount": "40.00",
    //   "merchid": "123456789012",
    //   "account": "4111111111111111",
    //   "ponumber": "PO-0736332"
    // }
    // 
    // Use this online tool to generate the code from sample JSON: 
    // Generate Code to Create JSON

    json = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateString(json,L"retref",L"112989260941");
    CkJsonObjectW_UpdateString(json,L"shiptozip",L"11111-1111");
    CkJsonObjectW_UpdateString(json,L"shipfromzip",L"99999-9999");
    CkJsonObjectW_UpdateString(json,L"amount",L"596.00");
    CkJsonObjectW_UpdateString(json,L"items[0].discamnt",L"0");
    CkJsonObjectW_UpdateString(json,L"items[0].unitcost",L"900");
    CkJsonObjectW_UpdateString(json,L"items[0].uom",L"CS");
    CkJsonObjectW_UpdateString(json,L"items[0].lineno",L"1");
    CkJsonObjectW_UpdateString(json,L"items[0].description",L"DESCRIPTION-1");
    CkJsonObjectW_UpdateString(json,L"items[0].taxamnt",L"117");
    CkJsonObjectW_UpdateString(json,L"items[0].quantity",L"1000");
    CkJsonObjectW_UpdateString(json,L"items[0].upc",L"UPC-1");
    CkJsonObjectW_UpdateString(json,L"items[0].netamnt",L"150");
    CkJsonObjectW_UpdateString(json,L"items[0].material",L"MATERIAL-1");
    CkJsonObjectW_UpdateString(json,L"items[1].discamnt",L"0");
    CkJsonObjectW_UpdateString(json,L"items[1].unitcost",L"450");
    CkJsonObjectW_UpdateString(json,L"items[1].uom",L"CS");
    CkJsonObjectW_UpdateString(json,L"items[1].lineno",L"2");
    CkJsonObjectW_UpdateString(json,L"items[1].description",L"DESCRIPTION-2");
    CkJsonObjectW_UpdateString(json,L"items[1].taxamnt",L"117");
    CkJsonObjectW_UpdateString(json,L"items[1].quantity",L"2000");
    CkJsonObjectW_UpdateString(json,L"items[1].upc",L"UPC-1");
    CkJsonObjectW_UpdateString(json,L"items[1].netamnt",L"300");
    CkJsonObjectW_UpdateString(json,L"items[1].material",L"MATERIAL-2");
    CkJsonObjectW_UpdateString(json,L"taxamount",L"40.00");
    CkJsonObjectW_UpdateString(json,L"merchid",L"MERCHANT_ID");
    CkJsonObjectW_UpdateString(json,L"account",L"4111111111111111");
    CkJsonObjectW_UpdateString(json,L"ponumber",L"PO-0736332");

    url = L"https://<site>.cardconnect.com:<port>/cardconnect/rest/capture";

    resp = CkHttpResponseW_Create();
    success = CkHttpW_HttpStr(http,L"PUT",url,CkJsonObjectW_emit(json),L"utf-8",L"application/json",resp);
    if (success == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(json);
        CkHttpResponseW_Dispose(resp);
        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",CkHttpResponseW_getStatusCode(resp));

    jsonResp = CkJsonObjectW_Create();
    CkJsonObjectW_Load(jsonResp,CkHttpResponseW_bodyStr(resp));
    CkJsonObjectW_putEmitCompact(jsonResp,FALSE);

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

    // A successful response looks like this:

    // {
    //   "amount": "596.00",
    //   "resptext": "Approval",
    //   "setlstat": "Queued for Capture",
    //   "commcard": " C ",
    //   "respcode": "00",
    //   "batchid": "1900942291",
    //   "merchid": "MERCHANT_ID",
    //   "token": "9418594164541111",
    //   "authcode": "PPS158",
    //   "respproc": "FNOR",
    //   "retref": "112989260941",
    //   "respstat": "A",
    //   "account": "9418594164541111"
    // }

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    amount = CkJsonObjectW_stringOf(jsonResp,L"amount");
    resptext = CkJsonObjectW_stringOf(jsonResp,L"resptext");
    setlstat = CkJsonObjectW_stringOf(jsonResp,L"setlstat");
    commcard = CkJsonObjectW_stringOf(jsonResp,L"commcard");
    respcode = CkJsonObjectW_stringOf(jsonResp,L"respcode");
    batchid = CkJsonObjectW_stringOf(jsonResp,L"batchid");
    merchid = CkJsonObjectW_stringOf(jsonResp,L"merchid");
    token = CkJsonObjectW_stringOf(jsonResp,L"token");
    authcode = CkJsonObjectW_stringOf(jsonResp,L"authcode");
    respproc = CkJsonObjectW_stringOf(jsonResp,L"respproc");
    retref = CkJsonObjectW_stringOf(jsonResp,L"retref");
    respstat = CkJsonObjectW_stringOf(jsonResp,L"respstat");
    account = CkJsonObjectW_stringOf(jsonResp,L"account");


    CkHttpW_Dispose(http);
    CkJsonObjectW_Dispose(json);
    CkHttpResponseW_Dispose(resp);
    CkJsonObjectW_Dispose(jsonResp);

    }