Pascal (Lazarus/Delphi)

HTTPS Upload File to Web Server

See more HTTP Examples

Uploads a file to a web server using HTTPS. 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.Http,
  Chilkat.HttpRequest,
  Chilkat.HttpResponse;

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

procedure RunDemo;
var
  success: Boolean;
  req: THttpRequest;
  http: THttp;
  useSslTls: Boolean;
  resp: THttpResponse;

begin
  success := False;

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

  //  The ContentType, HttpVerb, and Path properties should
  //  always be explicitly set.
  req := THttpRequest.Create;
  req.HttpVerb := 'POST';
  req.Path := '/receiveMyUpload.aspx';
  req.ContentType := 'multipart/form-data';

  req.AddStringForUpload('fileA','fileA.txt','This is the contents of file A','utf-8');
  success := req.AddFileForUpload('starfish.jpg','qa_data/jpg/starfish.jpg');
  if (success = False) then
    begin
      WriteLn(req.LastErrorText);
      Exit;
    end;

  http := THttp.Create;

  //  ----------------------------------------------------------------------------
  //  IMPORTANT:
  //  HTTP uploads require a counterpart implementation on the server, written in any desired language
  //  such as C#, Classic ASP, PHP, etc., which consumes the upload being sent.
  //  See: ASP.NET Receive Upload
  //  ----------------------------------------------------------------------------

  //  Do the upload.
  useSslTls := True;
  resp := THttpResponse.Create;
  success := http.HttpSReq('www.example.com',443,useSslTls,req,resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  WriteLn('response status code = ' + resp.StatusCode);
  WriteLn('response body:');
  WriteLn(resp.BodyStr);


  req.Free;
  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.