Delphi DLL

Client Certificate in REST (USB Token or Smartcard)

See more REST Examples

Demonstrates how to use a client certificate with a REST connection where the certificate and private key are located on a USB token or smart card. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Rest, Cert, Socket;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
rest: HCkRest;
socket: HCkSocket;
cert: HCkCert;
bTls: Boolean;
port: Integer;
maxWaitMs: Integer;
bAutoReconnect: Boolean;
responseJson: PWideChar;

begin
success := False;

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

// This example shows how to use the Chilkat socket object's connection.
rest := CkRest_Create();
socket := CkSocket_Create();

// Set the certificate to be used for mutual TLS authentication
cert := CkCert_Create();

// If the smartcard or token requires a PIN...
CkCert_putSmartCardPin(cert,'000000');

success := CkCert_LoadFromSmartcard(cert,'');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;

success := CkSocket_SetSslClientCert(socket,cert);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkSocket__lastErrorText(socket));
    Exit;
  end;

// Establish the connection using the socket object (with client certificate authentication).
bTls := True;
port := 443;
maxWaitMs := 5000;
success := CkSocket_Connect(socket,'www.example.com',port,bTls,maxWaitMs);
if (success <> True) then
  begin
    Memo1.Lines.Add('Connect Failure Error Code: ' + IntToStr(CkSocket_getConnectFailReason(socket)));
    Memo1.Lines.Add(CkSocket__lastErrorText(socket));
    Exit;
  end;

bAutoReconnect := True;

// Use the connection:
success := CkRest_UseConnection(rest,socket,bAutoReconnect);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// At this point we are connected and can make REST calls...
// For example..
responseJson := CkRest__fullRequestNoBody(rest,'GET','/someQuery');
if (CkRest_getLastMethodSuccess(rest) <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

CkRest_Dispose(rest);
CkSocket_Dispose(socket);
CkCert_Dispose(cert);

end;