(Delphi ActiveX) HTTP POST with Binary Data in Request Body

Do an HTTPS POST with a binary request body.

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;
fac: TCkFileAccess;
reqBody: Array of Byte;
responseStr: WideString;
responseStatusCode: Integer;

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

http := TChilkatHttp.Create(Self);

fac := TCkFileAccess.Create(Self);

reqBody := fac.ReadEntireFile('qa_data/pdf/helloWorld.pdf');

responseStr := http.PostBinary('https://example.com/something',reqBody,'application/pdf',0,0);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

responseStatusCode := http.LastStatus;
Memo1.Lines.Add('Status code: ' + IntToStr(responseStatusCode));

// For example, if the response is XML, JSON, HTML, etc.
Memo1.Lines.Add('response body:');
Memo1.Lines.Add(responseStr);
end;