HTTPS GET with Client Certificate

Simple HTTPS GET request to download the HTML of a web page. Uses a client digital certificate for the SSL connection.

Download Chilkat HTTP ActiveX

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATHTTPLib_TLB,
    CHILKATCERTIFICATELib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
success: Integer;
cert: TChilkatCert;
html: String;

begin
http := TChilkatHttp.Create(Self);

//  Any string unlocks the component for the 1st 30-days.
success := http.UnlockComponent('Anything for 30-day trial');
if (success <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

cert := TChilkatCert.Create(Self);
success := cert.LoadPfxFile('myCert.pfx','secret');
if (success <> 1) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;

http.SetSslClientCert(cert.ControlInterface As CHILKATHTTPLib_TLB.IChilkatCert);

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

html := http.QuickGetStr('https://www.paypal.com/');
if (Length(html) = 0 ) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
  end
else
  begin
    Memo1.Lines.Add(html);
  end;
end;