Flutter AI Voice Assistant via ChatGPT

Flutter AI Voice Assistant via ChatGPT

This project is a Flutter AI Voice Assistant via ChatGPT by OpenAI.

This project requires a valid session token from ChatGPT to access its unofficial REST API , speech_to_text and flutter_tts

*Sometimes slow to respond, mostly due to excessive use of ChatGPT

Demo

Usage

import 'package:flutter_chatgpt_api/flutter_chatgpt_api.dart';
import 'package:flutter_tts/flutter_tts.dart';
import 'package:speech_to_text/speech_recognition_result.dart';
import 'package:speech_to_text/speech_to_text.dart';

 @override
  void initState() {
    super.initState();
    _api = ChatGPTApi(sessionToken: SESSION_TOKEN);
    isLoading = false;
    _initSpeech();
  }
 
  void _initSpeech() async {
    speechEnabled = await _speechToText.initialize();
    _speechToText.systemLocale().then(
          (value) => tts.setLanguage(value!.localeId),
        );
    tts.setSpeechRate(0.6);
    setState(() {});
  }

  void _startListening() async {
    await _speechToText.listen(onResult: _onSpeechResult);
    setState(() {});
  }

  void _onSpeechResult(SpeechRecognitionResult result) {
    setState(
      () {
        if (result.finalResult) {
          _buildSubmit(result.recognizedWords);
        }
      },
    );
  }
_buildSubmit(String prompt) async {
    setState(
      () {
        _messages.add(
          ChatMessage(
            text: prompt,
            chatMessageType: ChatMessageType.user,
          ),
        );
        isLoading = true;
      },
    );
    var input = prompt;
    Future.delayed(const Duration(milliseconds: 50)).then((_) => _scrollDown());
    var newMessage = await _api.sendMessage(
      input,
      conversationId: _conversationId,
      parentMessageId: _parentMessageId,
    );
    setState(() {
      _conversationId = newMessage.conversationId;
      _parentMessageId = newMessage.messageId;
      isLoading = false;
      _messages.add(
        ChatMessage(
          text: newMessage.message,
          chatMessageType: ChatMessageType.bot,
        ),
      );
      tts.speak(newMessage.message);
    });
    Future.delayed(const Duration(milliseconds: 50)).then((_) => _scrollDown());
  }

SessionToken

To get a session token:

  1. Go to https://chat.openai.com/chat and log in or sign up.
  2. Open dev tools.
  3. Open Application > Cookies (Storage > Cookies on FireFox)

  1. Create these files and add your session token to run the tests and example respectively:
  • lib/session_token.dart

Should look something like this:

const SESSION_TOKEN = 'my session token from https://chat.openai.com/chat';

Credit

License

MIT Copyright (c) 2022, Emre Coşkunçay

If you found this project interesting, please consider supporting my open source work by sponsoring me or following me on twitter

GitHub

View Github