(Delphi ActiveX) AI: Diagnosing an Ask Failure

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Note: This example requires Chilkat v11.2.0 or greater.

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
success: Integer;
ai: TChilkatAi;
json: TChilkatJsonObject;
sbResponse: TChilkatStringBuilder;

begin
success := 0;

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

ai := TChilkatAi.Create(Self);

// The provider can be "openai", "google", "claude", "deepseek", "xai", or "perplexity".
// Support for additional providers will be added in future versions of Chilkat.
ai.Provider := 'openai';

// In this case, we're going to cause an intentional failure by using an invalid API key.
ai.ApiKey := 'sk-11111111111111111111111111111111111111111111111k';

// Choose a model.
ai.Model := 'gpt-4o';

// Add a text input.
ai.InputAddText('Say Hello.');

// Ask the AI for text output.
success := ai.Ask('text');
if (success = 0) then
  begin
    // If the response status code equals 0, it means the error occurred before receiving the HTTP response.
    // For this case look at the LastErrorText.
    if (ai.ResponseStatusCode = 0) then
      begin
        Memo1.Lines.Add(ai.LastErrorText);
      end
    else
      begin
        // If we received an error response, the status code will be >= 400.
        // (Ask would've returned 1 if the response status code was 200.)
        Memo1.Lines.Add('Response status code: ' + IntToStr(ai.ResponseStatusCode));

        // The error response (JSON) is available in the LastJsonData.
        json := TChilkatJsonObject.Create(Self);
        json.EmitCompact := 0;
        ai.GetLastJsonData(json.ControlInterface);
        Memo1.Lines.Add(json.Emit());

        // Sample output:
        // {
        //   "error": {
        //     "message": "Incorrect API key provided: sk-11111***************************************111k. You can find your API key at https://platform.openai.com/account/api-keys.",
        //     "type": "invalid_request_error",
        //     "param": null,
        //     "code": "invalid_api_key"
        //   }
        // }
      end;
    Exit;
  end;

// Get the text response.
sbResponse := TChilkatStringBuilder.Create(Self);
ai.GetOutputTextSb(sbResponse.ControlInterface);
Memo1.Lines.Add(sbResponse.GetAsString());
end;