(Delphi ActiveX) CardConnect Capture Level 3 Data

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 for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
success: Integer;
json: TChilkatJsonObject;
url: WideString;
responseStr: WideString;
jsonResp: TChilkatJsonObject;
amount: WideString;
resptext: WideString;
setlstat: WideString;
commcard: WideString;
respcode: WideString;
batchid: WideString;
merchid: WideString;
token: WideString;
authcode: WideString;
respproc: WideString;
retref: WideString;
respstat: WideString;
account: WideString;

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

http := TChilkatHttp.Create(Self);

http.BasicAuth := 1;
http.Login := 'API_USERNAME';
http.Password := '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 := TChilkatJsonObject.Create(Self);
json.UpdateString('retref','112989260941');
json.UpdateString('shiptozip','11111-1111');
json.UpdateString('shipfromzip','99999-9999');
json.UpdateString('amount','596.00');
json.UpdateString('items[0].discamnt','0');
json.UpdateString('items[0].unitcost','900');
json.UpdateString('items[0].uom','CS');
json.UpdateString('items[0].lineno','1');
json.UpdateString('items[0].description','DESCRIPTION-1');
json.UpdateString('items[0].taxamnt','117');
json.UpdateString('items[0].quantity','1000');
json.UpdateString('items[0].upc','UPC-1');
json.UpdateString('items[0].netamnt','150');
json.UpdateString('items[0].material','MATERIAL-1');
json.UpdateString('items[1].discamnt','0');
json.UpdateString('items[1].unitcost','450');
json.UpdateString('items[1].uom','CS');
json.UpdateString('items[1].lineno','2');
json.UpdateString('items[1].description','DESCRIPTION-2');
json.UpdateString('items[1].taxamnt','117');
json.UpdateString('items[1].quantity','2000');
json.UpdateString('items[1].upc','UPC-1');
json.UpdateString('items[1].netamnt','300');
json.UpdateString('items[1].material','MATERIAL-2');
json.UpdateString('taxamount','40.00');
json.UpdateString('merchid','MERCHANT_ID');
json.UpdateString('account','4111111111111111');
json.UpdateString('ponumber','PO-0736332');

url := 'https://<site>.cardconnect.com:<port>/cardconnect/rest/capture';
responseStr := http.PutText(url,json.Emit(),'utf-8','application/json',0,0);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    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(http.LastStatus));

jsonResp := TChilkatJsonObject.Create(Self);
jsonResp.Load(responseStr);
jsonResp.EmitCompact := 0;

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

// 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 := jsonResp.StringOf('amount');
resptext := jsonResp.StringOf('resptext');
setlstat := jsonResp.StringOf('setlstat');
commcard := jsonResp.StringOf('commcard');
respcode := jsonResp.StringOf('respcode');
batchid := jsonResp.StringOf('batchid');
merchid := jsonResp.StringOf('merchid');
token := jsonResp.StringOf('token');
authcode := jsonResp.StringOf('authcode');
respproc := jsonResp.StringOf('respproc');
retref := jsonResp.StringOf('retref');
respstat := jsonResp.StringOf('respstat');
account := jsonResp.StringOf('account');
end;