(Delphi DLL) Client Certificate in REST

Demonstrates how to use a client certificate with a REST connection.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

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

...

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

begin
// 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
// (i.e. sets the client-side certificate for two-way TLS authentication)
// Note: There are other ways to set the client certificate using Chilkat.
// For example, on Windows systems, a Chilkat certificate object could be loaded with certificate
// pre-installed (with private key) in a Windows certificate store, and then socket.SetSslClientCert could be called.
success := CkSocket_SetSslClientCertPfx(socket,'/home/bob/pfxFiles/myClientSideCertWithPrivateKey.pfx','pfxPassword');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkSocket__lastErrorText(socket));
    Exit;
  end;

// Note: The certificate used for the client-side of TLS mutual authentication
// must have the associated private key available. (.pfx/.p12 files typically store both
// the certificate and associated private key.)

// 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);

end;