(Delphi ActiveX) OpenAI (ChatGTP) Create Image

See more OpenAI ChatGPT Examples

Show how to send a POST to create an image. Gets the JSON response with URLs and then downloads images to files.

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

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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
success: Integer;
json: TChilkatJsonObject;
resp: IChilkatHttpResponse;
sbResponseBody: TChilkatStringBuilder;
jResp: TChilkatJsonObject;
respStatusCode: Integer;
url: WideString;
sbLocalFilePath: TChilkatStringBuilder;
created: Integer;
i: Integer;
count_i: Integer;

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

http := TChilkatHttp.Create(Self);

// Implements the following CURL command:

// curl https://api.openai.com/v1/images/generations \
//   -H "Content-Type: application/json" \
//   -H "Authorization: Bearer $OPENAI_API_KEY" \
//   -d '{
//     "prompt": "A cute baby sea otter",
//     "n": 2,
//     "size": "1024x1024"
//   }'

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

// Use this online tool to generate code from sample JSON:
// Generate Code to Create JSON

// The following JSON is sent in the request body.

// {
//   "prompt": "A cute baby sea otter",
//   "n": 2,
//   "size": "1024x1024"
// }

json := TChilkatJsonObject.Create(Self);
json.UpdateString('prompt','A cute baby sea otter');
json.UpdateInt('n',2);
json.UpdateString('size','1024x1024');

// Adds the "Authorization: Bearer $OPENAI_API_KEY" header.
// This is NOT a real key.  Change the "sk-vi...." to your own key.
http.AuthToken := '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';
http.SetRequestHeader('Content-Type','application/json');

resp := http.PostJson3('https://api.openai.com/v1/images/generations','application/json',json.ControlInterface);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

sbResponseBody := TChilkatStringBuilder.Create(Self);
resp.GetBodySb(sbResponseBody.ControlInterface);

jResp := TChilkatJsonObject.Create(Self);
jResp.LoadSb(sbResponseBody.ControlInterface);
jResp.EmitCompact := 0;

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

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

    Exit;
  end;

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

// {
//   "created": 1589478378,
//   "data": [
//     {
//       "url": "https://..."
//     },
//     {
//       "url": "https://..."
//     }
//   ]
// }

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

sbLocalFilePath := TChilkatStringBuilder.Create(Self);

// Download each image..
http.ClearHeaders();
http.AuthToken := '';

created := jResp.IntOf('created');
i := 0;
count_i := jResp.SizeOfArray('data');
while i < count_i do
  begin
    jResp.I := i;
    url := jResp.StringOf('data[i].url');

    sbLocalFilePath.SetString('c:/aaworkarea/image_');
    sbLocalFilePath.AppendInt(i + 1);
    sbLocalFilePath.Append('.png');

    success := http.Download(url,sbLocalFilePath.GetAsString());
    if (success = 0) then
      begin
        Memo1.Lines.Add(http.LastErrorText);
        Exit;
      end;
    i := i + 1;
  end;
end;