(Delphi ActiveX) Adding Cookies to an HTTP Request

Demonstrates how to add one or more cookies to an HTTP request.

Note: This example requires Chilkat v11.0.0 or greater.

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
success: Integer;
http: TChilkatHttp;
req: TChilkatHttpRequest;
domain: WideString;
port: Integer;
ssl: Integer;
resp: TChilkatHttpResponse;
html: WideString;

begin
success := 0;

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

http := TChilkatHttp.Create(Self);

// The Cookie header field has this format:
// Cookie: name1=value1 [; name2=value2] ...

// Build an HTTP POST request:
req := TChilkatHttpRequest.Create(Self);
req.SetFromUrl('http://www.chilkatsoft.com/echoPost.asp');
req.HttpVerb := 'POST';

req.AddParam('param1','value1');
req.AddParam('param2','value2');

// To add cookies to any HTTP request sent by a Chilkat HTTP method
// that uses an HTTP request object, add the cookies to the
// request object by calling AddHeader.  

// Add two cookies:
req.AddHeader('Cookie','user="mary"; city="Chicago"');

// Send the HTTP POST.  
// (The cookies are sent as part of the HTTP header.)

domain := 'www.chilkatsoft.com';
port := 80;
ssl := 0;
resp := TChilkatHttpResponse.Create(Self);
success := http.HttpSReq(domain,port,ssl,req.ControlInterface,resp.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

// Display the HTML body of the response.
if (resp.StatusCode = 200) then
  begin
    // Show the last HTTP request header sent, which should include
    // our cookies...
    Memo1.Lines.Add(http.LastHeader);
  end
else
  begin
    Memo1.Lines.Add('HTTP Response Status = ' + IntToStr(resp.StatusCode));
  end;

Memo1.Lines.Add('---------------------');

// Some Chilkat HTTP methods do not use an HTTP request object. 
// For these methods, such as for QuickGetStr, cookies (or any HTTP request header) 
// are added by calling SetRequestHeader.  
http.SetRequestHeader('Cookie','user="mary"; city="Chicago"');

html := http.QuickGetStr('http://www.w3.org/');
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
  end
else
  begin
    // Show the last HTTP request header sent, which should include
    // our cookies...
    Memo1.Lines.Add(http.LastHeader);
  end;
end;