(Delphi DLL) CardConnect Validate Merchant-Level Credentials

To test and validate merchant-level credentials, you can make a PUT request, including the merchant ID in the body of the request, to the base URL. The Gateway verifies that the MID matches the credentials provided in the header.

Chilkat for Delphi Downloads

Chilkat non-ActiveX DLL for Delphi

Chilkat ActiveX DLL for Delphi

* The examples here use the non-ActiveX DLL.

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: HCkHttp;
json: HCkJsonObject;
success: Boolean;
url: PWideChar;
responseStr: PWideChar;

begin
// 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');

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

url := 'https://<site>.cardconnect.com:<port>/cardconnect/rest/';
responseStr := CkHttp__putText(http,url,CkJsonObject__emit(json),'utf-8','application/json',False,False);

if (CkHttp_getLastMethodSuccess(http) = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

// If we get a 200 response status and an HTML response saying "CardConnect REST Servlet", then our credentials are correct.
Memo1.Lines.Add('response status code = ' + IntToStr(CkHttp_getLastStatus(http)));

Memo1.Lines.Add('response string:');
Memo1.Lines.Add(responseStr);

// Sample output:

// response status code = 200
// response string:
// <html lang="en"><body><h1>CardConnect REST Servlet</h1></body></html

CkHttp_Dispose(http);
CkJsonObject_Dispose(json);

end;