HTTP POST

Demonstrates a simple HTTP POST. You may test this program against http://www.chilkatsoft.com/testPostHandler.asp. This ASP page fetches and displays the contents of form variables named arg1, arg2, and arg3.

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);
    Exit;
  end;

//  Build an HTTP POST Request:
req.UsePost();
req.Path := '/testPostHandler.asp';
req.AddParam('arg1','This is the value for arg1.');
req.AddParam('arg2','This is the value for arg2.');
req.AddParam('arg3','This is the value for arg3.');

//  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 HTML page returned.
    Memo1.Lines.Add(resp.BodyStr);
  end;
end;