Pascal (Lazarus/Delphi)

OpenAI (ChatGPT) Upload JSON String

See more OpenAI ChatGPT Examples

Demonstrate how to upload a file (from a JSON string) to a OpenAI user's organization. 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,
  Chilkat.StringBuilder,
  Chilkat.JsonObject;

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

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  req: THttpRequest;
  sbJsonData: TStringBuilder;
  resp: THttpResponse;
  sbResponseBody: TStringBuilder;
  jResp: TJsonObject;
  respStatusCode: Integer;
  id: string;
  v_object: string;
  v_bytes: Integer;
  created_at: Integer;
  filename: string;
  purpose: string;

begin
  success := False;

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

  http := THttp.Create;

  //  Implements the following CURL command:

  //  curl https://api.openai.com/v1/files \
  //    -H "Authorization: Bearer $OPENAI_API_KEY" \
  //    -F purpose="fine-tune" \
  //    -F file="@mydata.jsonl"

  //  Use the following online tool to generate HTTP code from a CURL command
  //  Convert a cURL Command to HTTP Source Code

  req := THttpRequest.Create;
  req.HttpVerb := 'POST';
  req.Path := '/v1/files';
  req.ContentType := 'multipart/form-data';
  req.AddParam('purpose','fine-tune');

  //  { "prompt": "aa", "completion": "bb" }
  //  { "prompt": "cc", "completion": "dd" }
  sbJsonData := TStringBuilder.Create;
  sbJsonData.AppendLine('{ "prompt": "aa", "completion": "bb" }',True);
  sbJsonData.AppendLine('{ "prompt": "cc", "completion": "dd" }',True);
  success := req.AddStringForUpload2('file','mydata2.jsonl',sbJsonData.GetAsString(),'utf-8','application/octet-stream');

  //  This is NOT a real key.  Change the "sk-vi...." to your own key.
  req.AddHeader('Authorization','Bearer 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');
  req.AddHeader('Expect','100-continue');

  resp := THttpResponse.Create;
  success := http.HttpSReq('api.openai.com',443,True,req,resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  sbResponseBody := TStringBuilder.Create;
  resp.GetBodySb(sbResponseBody);

  jResp := TJsonObject.Create;
  jResp.LoadSb(sbResponseBody);
  jResp.EmitCompact := False;

  WriteLn('Response Body:');
  WriteLn(jResp.Emit());

  respStatusCode := resp.StatusCode;
  WriteLn('Response Status Code = ' + respStatusCode);
  if (respStatusCode >= 400) then
    begin
      WriteLn('Response Header:');
      WriteLn(resp.Header);
      WriteLn('Failed.');
      Exit;
    end;

  //  Sample JSON response:
  //  (Sample code for parsing the JSON response is shown below)

  //  {
  //    "id": "file-XjGxS3KTG0uNmNOK362iJua3",
  //    "object": "file",
  //    "bytes": 140,
  //    "created_at": 1613779121,
  //    "filename": "mydata2.jsonl",
  //    "purpose": "fine-tune"
  //  }

  //  Sample code for parsing the JSON response...
  //  Use the following online tool to generate parsing code from sample JSON:
  //  Generate Parsing Code from JSON

  id := jResp.StringOf('id');
  v_object := jResp.StringOf('object');
  v_bytes := jResp.IntOf('bytes');
  created_at := jResp.IntOf('created_at');
  filename := jResp.StringOf('filename');
  purpose := jResp.StringOf('purpose');


  http.Free;
  req.Free;
  sbJsonData.Free;
  resp.Free;
  sbResponseBody.Free;
  jResp.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.