(Delphi ActiveX) Add Custom Header to HTTP GET

Demonstrates how to add a custom HTTP request header to an HTTP GET. This is not a request parameter, but is a header added to the MIME header of the HTTP request.

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
chilkatGlob: TChilkatGlobal;
success: Integer;
http: TChilkatHttp;
html: WideString;

begin
// All Chilkat classes can be unlocked at once at the beginning of a program
// by calling UnlockBundle.  It requires a Bundle unlock code.
chilkatGlob := TChilkatGlobal.Create(Self);
success := chilkatGlob.UnlockBundle('Anything for 30-day trial.');
if (success <> 1) then
  begin
    Memo1.Lines.Add(chilkatGlob.LastErrorText);
    Exit;
  end;

http := TChilkatHttp.Create(Self);

// Add a custom header.  The MIME field name is "X-CSRF-Token", and the 
// header field value is "Fetch".
http.SetRequestHeader('X-CSRF-Token','Fetch');

// Send the HTTP GET and return the content in a string.

html := http.QuickGetStr('http://www.galapagos.org/');

Memo1.Lines.Add(html);
end;