(Delphi DLL) AI: Diagnosing an Ask Failure

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

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, StringBuilder, Ai, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
ai: HCkAi;
json: HCkJsonObject;
sbResponse: HCkStringBuilder;

begin
success := False;

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

ai := CkAi_Create();

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

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

// Choose a model.
CkAi_putModel(ai,'gpt-4o');

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

// Ask the AI for text output.
success := CkAi_Ask(ai,'text');
if (success = False) 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 (CkAi_getResponseStatusCode(ai) = 0) then
      begin
        Memo1.Lines.Add(CkAi__lastErrorText(ai));
      end
    else
      begin
        // If we received an error response, the status code will be >= 400.
        // (Ask would've returned True if the response status code was 200.)
        Memo1.Lines.Add('Response status code: ' + IntToStr(CkAi_getResponseStatusCode(ai)));

        // The error response (JSON) is available in the LastJsonData.
        json := CkJsonObject_Create();
        CkJsonObject_putEmitCompact(json,False);
        CkAi_GetLastJsonData(ai,json);
        Memo1.Lines.Add(CkJsonObject__emit(json));

        // 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 := CkStringBuilder_Create();
CkAi_GetOutputTextSb(ai,sbResponse);
Memo1.Lines.Add(CkStringBuilder__getAsString(sbResponse));

CkAi_Dispose(ai);
        CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbResponse);

end;