XMLHTTP / XMLHttpRequest

Shows how to send an XMLHttpRequest POST and get the response. The body of the HTTP request is an XML document.

Download Chilkat HTTP ActiveX

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
req: TChilkatHttpRequest;
http: TChilkatHttp;
success: Integer;
domain: String;
port: Integer;
ssl: Integer;
resp: IChilkatHttpResponse;

begin
req := TChilkatHttpRequest.Create(Self);
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
    ShowMessage(http.LastErrorText);

  end;

//  Note: You must first replace the domain and path of this example with real values.
//  There is nothing at http://www.chilkatsoft.com/something.asp

//  Build an XMLHTTP request.  The XML passed to UseXmlHttp is sent
//  in the body of the request.
req.UseXmlHttp('<test>This is the XML to be sent</test>');
req.Path := '/something.asp';

//  Send the HTTP POST and get the response.  Note: This is a blocking call.
//  The method does not return until the full HTTP response is received.

domain := 'www.chilkatsoft.com';
port := 80;
ssl := 0;

resp := http.SynchronousRequest(domain,port,ssl,req.DefaultInterface);
if (resp = nil ) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
  end
else
  begin
    //  Display the body of the response.
    Memo1.Lines.Add(resp.BodyStr);
  end;
end;