(Delphi ActiveX) PayPal PayFlowPro - Send Transaction to Server

Sends a simple transaction to the Gateway server.

For more information, see https://developer.paypal.com/docs/payflow/integration-guide/simple-transaction

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;
req: TChilkatHttpRequest;
resp: IChilkatHttpResponse;

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

http := TChilkatHttp.Create(Self);

// Implements the following CURL command:

// curl https://pilot-payflowpro.paypal.com -d PARTNER=PayPal -d VENDOR=zzz -d USER=zzz -d PWD=zzzzz -d TRXTYPE=S -d AMT=40 -d CREATESECURETOKEN=Y -d SECURETOKENID=XXXEFF0A-XXXX-4585-XXXX-B763B1F1XXXX

// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code

req := TChilkatHttpRequest.Create(Self);
req.HttpVerb := 'POST';
req.Path := '/';
req.ContentType := 'application/x-www-form-urlencoded';
req.AddParam('PARTNER','PayPal');
req.AddParam('VENDOR','zzz');
req.AddParam('USER','zzz');
req.AddParam('PWD','zzzzz');
req.AddParam('TRXTYPE','S');
req.AddParam('AMT','40');
req.AddParam('CREATESECURETOKEN','Y');
req.AddParam('SECURETOKENID','XXXEFF0A-XXXX-4585-XXXX-B763B1F1XXXX');

resp := http.PostUrlEncoded('https://pilot-payflowpro.paypal.com',req.ControlInterface);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('Status code: ' + IntToStr(resp.StatusCode));
Memo1.Lines.Add('Response body:');
Memo1.Lines.Add(resp.BodyStr);
end;