Pascal (Lazarus/Delphi)

POST application/json HTTPS Request

See more HTTP Examples

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. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.HttpResponse,
  Chilkat.Http;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  url: string;
  jsonRequestBody: string;
  resp: THttpResponse;
  jsonResponseStr: string;

begin
  success := False;

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

  http := THttp.Create;

  //  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 := THttpResponse.Create;
  success := http.HttpStr('POST',url,jsonRequestBody,'utf-8','application/json',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  WriteLn('Response status code = ' + resp.StatusCode);
  jsonResponseStr := resp.BodyStr;

  WriteLn(jsonResponseStr);


  http.Free;
  resp.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.