Pascal (Lazarus/Delphi)

Upload a File to an AI Provider (OpenAI, Google, Antropic, X)

See more AI Examples

Uploads a file to an AI provider using the provider's File API and returns the id that can later be used to reference the file in an query. This currently works with ChatGPT, Gemini, Claude, and Grok. 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.StringBuilder,
  Chilkat.Ai,
  Chilkat.BinData;

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

procedure RunDemo;
var
  success: Boolean;
  ai: TAi;
  contentType: string;
  localFilePath: string;
  filenameOnServer: string;
  file_id: string;
  sb: TStringBuilder;
  bd: TBinData;

begin
  success := False;

  ai := TAi.Create;

  //  The provider can be "openai", "google", "claude", "grok", or any AI that supports uploading files for later reference by ID.
  ai.Provider := 'openai';
  //  Use your provider's API key.
  ai.ApiKey := 'MY_API_KEY';

  //  We can upload directly from a file in the filesystem, or from a Chilkat StringBuilder, or from a Chilkat BinData.

  //  Some AI providers require a content-type.
  //  Also, some AI providers are picky about what content-type's are accepted.
  //  Check the AI provider's documentation.
  //  "application/json" is generally always acceptable.
  //  "text/plain" can be used as a fallback for any text file.
  contentType := 'application/json';
  localFilePath := 'qa_data/hamlet.json';
  filenameOnServer := 'hamlet.json';

  //  Upload directly from a file.
  file_id := ai.UploadFile(localFilePath,contentType);
  if (ai.LastMethodSuccess = False) then
    begin
      WriteLn(ai.LastErrorText);
      WriteLn('AI File Upload Failed.');
    end
  else
    begin
      WriteLn('File ID: ' + file_id);
      WriteLn('File uploaded.');
    end;

  //  Upload from the contents of a StringBuilder
  sb := TStringBuilder.Create;
  success := sb.LoadFile(localFilePath,'utf-8');
  if (success = False) then
    begin
      WriteLn(sb.LastErrorText);
      Exit;
    end;

  file_id := ai.UploadFileSb(sb,filenameOnServer,contentType);
  if (ai.LastMethodSuccess = False) then
    begin
      WriteLn(ai.LastErrorText);
      WriteLn('AI File Upload Failed.');
    end
  else
    begin
      WriteLn('File ID: ' + file_id);
      WriteLn('File uploaded.');
    end;

  //  Upload from the contents of a BinData
  bd := TBinData.Create;
  success := bd.LoadFile(localFilePath);
  if (success = False) then
    begin
      WriteLn(bd.LastErrorText);
      Exit;
    end;

  file_id := ai.UploadFileBd(bd,filenameOnServer,contentType);
  if (ai.LastMethodSuccess = False) then
    begin
      WriteLn(ai.LastErrorText);
      WriteLn('AI File Upload Failed.');
    end
  else
    begin
      WriteLn('File ID: ' + file_id);
      WriteLn('File uploaded.');
    end;


  ai.Free;
  sb.Free;
  bd.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.