Delphi ActiveX

Inspect HTTP Request Header

Demonstrates the LastHeader property. Delphi ActiveX

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;
url: WideString;
json: WideString;
resp: TChilkatHttpResponse;

begin
success := 0;

http := TChilkatHttp.Create(Self);

url := 'https://chilkatsoft.com/echo_request_body.asp';
json := '{"greeting":"Hello World"}';

// Send a POST with the JSON in the HTTP request body.
resp := TChilkatHttpResponse.Create(Self);
success := http.HttpStr('POST',url,json,'utf-8','application/json',resp.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

// Examine the HTTP request header we just sent.
Memo1.Lines.Add(http.LastHeader);

// Output:

// POST /echo_request_body.asp HTTP/1.1
// Host: chilkatsoft.com
// Accept: */*
// Accept-Encoding: gzip
// Content-Type: application/json
// Content-Length: 26
end;