(Delphi ActiveX) POST application/json HTTPS Request

Demonstrates how to send an HTTPS POST where the request body and response body both have the application/json Content-Type. Also demonstrates how to add a few custom headers to the request.

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
http: TChilkatHttp;
url: WideString;
jsonRequestBody: WideString;
resp: IChilkatHttpResponse;
jsonResponseStr: WideString;

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

http := TChilkatHttp.Create(Self);

// Add a few custom headers.
http.SetRequestHeader('Client-ID','my_client_id');
http.SetRequestHeader('Client-Token','my_client_token');

http.Accept := 'application/json';

url := 'https://api.fiscallog.eu/sign/v1';
jsonRequestBody := '{ .... }';
resp := http.PostJson2(url,'application/json',jsonRequestBody);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('Response status code = ' + IntToStr(resp.StatusCode));
jsonResponseStr := resp.BodyStr;

Memo1.Lines.Add(jsonResponseStr);
end;