(Delphi DLL) OpenAI (ChatGTP) Upload JSON String

See more OpenAI ChatGPT Examples

Demonstrate how to upload a file (from a JSON string) to a OpenAI user's organization.

For more information, see https://platform.openai.com/docs/api-reference/files/upload

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, HttpRequest, HttpResponse, StringBuilder, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: HCkHttp;
success: Boolean;
req: HCkHttpRequest;
sbJsonData: HCkStringBuilder;
resp: HCkHttpResponse;
sbResponseBody: HCkStringBuilder;
jResp: HCkJsonObject;
respStatusCode: Integer;
id: PWideChar;
v_object: PWideChar;
v_bytes: Integer;
created_at: Integer;
filename: PWideChar;
purpose: PWideChar;

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

http := CkHttp_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 := CkHttpRequest_Create();
CkHttpRequest_putHttpVerb(req,'POST');
CkHttpRequest_putPath(req,'/v1/files');
CkHttpRequest_putContentType(req,'multipart/form-data');
CkHttpRequest_AddParam(req,'purpose','fine-tune');

// { "prompt": "aa", "completion": "bb" }
// { "prompt": "cc", "completion": "dd" }
sbJsonData := CkStringBuilder_Create();
CkStringBuilder_AppendLine(sbJsonData,'{ "prompt": "aa", "completion": "bb" }',True);
CkStringBuilder_AppendLine(sbJsonData,'{ "prompt": "cc", "completion": "dd" }',True);
success := CkHttpRequest_AddStringForUpload2(req,'file','mydata2.jsonl',CkStringBuilder__getAsString(sbJsonData),'utf-8','application/octet-stream');

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

resp := CkHttp_SynchronousRequest(http,'api.openai.com',443,True,req);
if (CkHttp_getLastMethodSuccess(http) = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

sbResponseBody := CkStringBuilder_Create();
CkHttpResponse_GetBodySb(resp,sbResponseBody);

jResp := CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,sbResponseBody);
CkJsonObject_putEmitCompact(jResp,False);

Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(CkJsonObject__emit(jResp));

respStatusCode := CkHttpResponse_getStatusCode(resp);
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
if (respStatusCode >= 400) then
  begin
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(CkHttpResponse__header(resp));
    Memo1.Lines.Add('Failed.');
    CkHttpResponse_Dispose(resp);
    Exit;
  end;
CkHttpResponse_Dispose(resp);

// 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 := CkJsonObject__stringOf(jResp,'id');
v_object := CkJsonObject__stringOf(jResp,'object');
v_bytes := CkJsonObject_IntOf(jResp,'bytes');
created_at := CkJsonObject_IntOf(jResp,'created_at');
filename := CkJsonObject__stringOf(jResp,'filename');
purpose := CkJsonObject__stringOf(jResp,'purpose');

CkHttp_Dispose(http);
CkHttpRequest_Dispose(req);
CkStringBuilder_Dispose(sbJsonData);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);

end;