Delphi DLL Requires Chilkat v11.0.0+

CardConnect Void

See more CardConnect Examples

Demonstrates how to send a CardConnect void request.

The void service cancels a transaction that is in either "Authorized" or "Queued for Capture" status.. ...

See https://developer.cardconnect.com/cardconnect-api#void

Delphi DLL

var
success: Boolean;
http: HCkHttp;
json: HCkJsonObject;
url: PWideChar;
resp: HCkHttpResponse;
jsonResp: HCkJsonObject;
authcode: PWideChar;
respproc: PWideChar;
amount: PWideChar;
resptext: PWideChar;
currency: PWideChar;
retref: PWideChar;
respstat: PWideChar;
respcode: PWideChar;
merchid: PWideChar;

begin
success := False;

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

http := CkHttp_Create();

CkHttp_putBasicAuth(http,True);
CkHttp_putLogin(http,'API_USERNAME');
CkHttp_putPassword(http,'API_PASSWORD');

//  Build and send the following JSON:

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

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

json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'retref','112989260941');
CkJsonObject_UpdateString(json,'merchid','MERCHANT_ID');

url := 'https://<site>.cardconnect.com:<port>/cardconnect/rest/void';

resp := CkHttpResponse_Create();
success := CkHttp_HttpStr(http,'PUT',url,CkJsonObject__emit(json),'utf-8','application/json',resp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

//  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.
Memo1.Lines.Add('response status code = ' + IntToStr(CkHttpResponse_getStatusCode(resp)));

jsonResp := CkJsonObject_Create();
CkJsonObject_Load(jsonResp,CkHttpResponse__bodyStr(resp));
CkJsonObject_putEmitCompact(jsonResp,False);

Memo1.Lines.Add('response JSON:');
Memo1.Lines.Add(CkJsonObject__emit(jsonResp));

//  A successful response looks like this:

//  {
//    "authcode": "REVERS",
//    "respproc": "FNOR",
//    "amount": "0.00",
//    "resptext": "Approval",
//    "currency": "USD",
//    "retref": "112989260941",
//    "respstat": "A",
//    "respcode": "00",
//    "merchid": "496160873888"
//  }

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

authcode := CkJsonObject__stringOf(jsonResp,'authcode');
respproc := CkJsonObject__stringOf(jsonResp,'respproc');
amount := CkJsonObject__stringOf(jsonResp,'amount');
resptext := CkJsonObject__stringOf(jsonResp,'resptext');
currency := CkJsonObject__stringOf(jsonResp,'currency');
retref := CkJsonObject__stringOf(jsonResp,'retref');
respstat := CkJsonObject__stringOf(jsonResp,'respstat');
respcode := CkJsonObject__stringOf(jsonResp,'respcode');
merchid := CkJsonObject__stringOf(jsonResp,'merchid');

CkHttp_Dispose(http);
CkJsonObject_Dispose(json);
CkHttpResponse_Dispose(resp);
CkJsonObject_Dispose(jsonResp);