Set a Multipart Part Body from BinData

See more REST Examples

Demonstrates Rest.SetMultipartBodyBd, which sets the binary body of the selected multipart part from a BinData.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

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.BinData,
  Chilkat.Rest;

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

procedure RunDemo;
var
  success: Boolean;
  rest: TRest;
  bTls: Boolean;
  bAutoReconnect: Boolean;
  bdBody: TBinData;
  bLoaded: Boolean;
  responseText: string;

begin
  success := False;

  rest := TRest.Create;
  bTls := True;
  bAutoReconnect := True;
  success := rest.Connect('example.com',443,bTls,bAutoReconnect);
  if (success = False) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;
  //  The file paths are relative to the application's current working directory.  Absolute paths
  //  may also be used.  Supply the paths appropriate to your own environment.

  //  Select the multipart part to build, and set its header fields.
  rest.PartSelector := '1';
  rest.AddHeader('Content-Disposition','form-data; name="field1"');
  rest.AddHeader('Content-Type','image/png');

  //  Set the binary body of the selected part from a BinData.
  bdBody := TBinData.Create;
  bLoaded := bdBody.LoadFile('qa_data/image.png');
  if (bLoaded <> True) then
    begin
      WriteLn('Failed to load the part body file.');
      Exit;
    end;
  success := rest.SetMultipartBodyBd(bdBody);
  if (success = False) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;

  responseText := rest.FullRequestMultipart('POST','/api/upload');
  if (rest.LastMethodSuccess = False) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;
  WriteLn(responseText);


  rest.Free;
  bdBody.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.