ChatGPT Application with flutter #

ChatGPT is a chat-bot launched by OpenAI in November 2022. It is built on top of OpenAI's GPT-3.5 family of large language models, and is fine-tuned with both supervised and reinforcement learning techniques.

Unofficial #

"community-maintained” library.

OpenAI Powerful Library Support GPT-4 #

GitHub commit activity GitHub contributors GitHub Workflow Status GitHub Pub Points Pub Popularity Pub Likes Pub Version

Features #

✅ Install Package
✅ Create OpenAI Instance
✅ Change Access Token
✅ Complete Text
- Support Server Sent Event
✅ Chat Complete GPT-4
- Support GPT3.5 and GPT-4
- Support Server Sent Event
✅ Error Handle
✅ Example Q&A
✅ Generate Image With Prompt
✅ Editing
✅ Cancel Generate
✅ File
✅ Audio
✅ Embedding
✅ Fine-Tune
- Support Server Sent Event
✅ Moderations
✅ Model And Engine
✅ Translate Example
✅ Video Tutorial
✅ Docs

Install Package #

chat_gpt_sdk: 2.1.8

Create OpenAI Instance #

Parameter
- Token
  - Your secret API keys are listed below. Please note that we do not display your secret API keys again after you generate them.
  - Do not share your API key with others, or expose it in the browser or other client-side code. In order to protect the security of your account, OpenAI may also automatically rotate any API key that we've found has leaked publicly.
  - https://beta.openai.com/account/api-keys
OrgId
- Identifier for this organization sometimes used in API requests
- https://beta.openai.com/account/org-settings

final openAI = OpenAI.instance.build(token: token,baseOption: HttpSetup(receiveTimeout: const Duration(seconds: 5)),enableLog: true);

Change Access Token #

openAI.setToken('new-access-token');
///get toekn
openAI.token;

Complete Text #

Text Complete API
- Translate Method
  - translateEngToThai
  - translateThaiToEng
  - translateToJapanese
- Model
  - kTranslateModelV3
  - kTranslateModelV2
  - kCodeTranslateModelV2
    - Translate natural language to SQL queries.
    - Create code to call the Stripe API using natural language.
    - Find the time complexity of a function.
- https://beta.openai.com/examples
Complete with Feature

  void _translateEngToThai() async{
  final request = CompleteText(
          prompt: translateEngToThai(word: _txtWord.text.toString()),
          maxToken: 200,
          model: Model.textDavinci3);

  final response = await openAI.onCompletion(request: request);
  
  ///cancel request
  openAI.cancelAIGenerate();
  print(response);
}

Complete with FutureBuilder

Future<CTResponse?>? _translateFuture;

_translateFuture = openAI.onCompletion(request: request);

///ui code
FutureBuilder<CTResponse?>(
 future: _translateFuture,
 builder: (context, snapshot) {
   final data = snapshot.data;
   if(snapshot.connectionState == ConnectionState.done) return something 
   if(snapshot.connectionState == ConnectionState.waiting) return something
   return something
})

GPT-3 with SSE

 void completeWithSSE() {
  final request = CompleteText(
          prompt: "Hello world", maxTokens: 200, model: Model.textDavinci3);
  openAI.onCompletionSSE(request: request).listen((it) {
    debugPrint(it.choices.last.text);
  });
}

Chat Complete (GPT-4 and GPT-3.5) #

GPT-4

  void chatComplete() async {
    final request = ChatCompleteText(messages: [
      Map.of({"role": "user", "content": 'Hello!'})
    ], maxToken: 200, model: ChatModel.gpt_4);

    final response = await openAI.onChatCompletion(request: request);
    for (var element in response!.choices) {
      print("data -> ${element.message?.content}");
    }
  }

GPT-4 with SSE(Server Send Event)

 void chatCompleteWithSSE() {
  final request = ChatCompleteText(messages: [
    Map.of({"role": "user", "content": 'Hello!'})
  ], maxToken: 200, model: ChatModel.gpt_4);

  openAI.onChatCompletionSSE(request: request).listen((it) {
    debugPrint(it.choices.last.message?.content);
  });
}

Support SSE(Server Send Event)
- GPT-3.5 Turbo

 void chatCompleteWithSSE() {
  final request = ChatCompleteText(messages: [
    Map.of({"role": "user", "content": 'Hello!'})
  ], maxToken: 200, model: ChatModel.chatGptTurbo);

  openAI.onChatCompletionSSE(request: request).listen((it) {
    debugPrint(it.choices.last.message?.content);
  });
}

Chat Complete

  void chatComplete() async {
    final request = ChatCompleteText(messages: [
      Map.of({"role": "user", "content": 'Hello!'})
    ], maxToken: 200, model: ChatModel.chatGptTurbo0301);

    final response = await openAI.onChatCompletion(request: request);
    for (var element in response!.choices) {
      print("data -> ${element.message?.content}");
    }
  }

Error Handle #

///using catchError
 openAI.onCompletion(request: request)
    .catchError((err){
      if(err is OpenAIAuthError){
        print('OpenAIAuthError error ${err.data?.error?.toMap()}');
      }
      if(err is OpenAIRateLimitError){
        print('OpenAIRateLimitError error ${err.data?.error?.toMap()}');
      }
      if(err is OpenAIServerError){
        print('OpenAIServerError error ${err.data?.error?.toMap()}');
      }
      });

///using try catch
 try {
   await openAI.onCompletion(request: request);
 } on OpenAIRateLimitError catch (err) {
   print('catch error ->${err.data?.error?.toMap()}');
 }

///with stream
 openAI
        .onCompletionSSE(request: request)
        .transform(StreamTransformer.fromHandlers(
          handleError: (error, stackTrace, sink) {
              if (error is OpenAIRateLimitError) {
              print('OpenAIRateLimitError error ->${error.data?.message}');
              }}))
        .listen((event) {
          print("success");
        });

Q&A #

Example Q&A
- Answer questions based on existing knowledge.

final request = CompleteText(prompt:'What is human life expectancy in the United States?'),
                model: Model.textDavinci3, maxTokens: 200);

 final response = await openAI.onCompletion(request:request);

Request

Q: What is human life expectancy in the United States?

Response

A: Human life expectancy in the United States is 78 years.

Generate Image With Prompt #

Generate Image
- prompt
  - A text description of the desired image(s). The maximum length is 1000 characters.
- n
  - The number of images to generate. Must be between 1 and 10.
- size
  - The size of the generated images. Must be one of 256x256, 512x512, or 1024x1024.
- response_format
  - The format in which the generated images are returned. Must be one of url or b64_json.
- user
  - A unique identifier representing your end-user, which can help OpenAI to monitor and detect abuse.
Generate with feature

  void _generateImage() {
  const prompt = "cat eating snake blue red.";

  final request = GenerateImage(prompt, 1,size: ImageSize.size256,
          responseFormat: Format.url);
  final response = openAI.generateImage(request);
  print("img url :${response.data?.last?.url}");
}

Edit #

Edit Prompt

void editPrompt() async {
    final response = await openAI.editor.prompt(EditRequest(
        model: EditModel.textEditModel,
        input: 'What day of the wek is it?',
        instruction: 'Fix the spelling mistakes'));

    print(response.choices.last.text);
  }

Edit Image

 void editImage() async {
  final response = await openAI.editor.editImage(EditImageRequest(
          image: EditFile("${image?.path}", '${image?.name}'),
          mask: EditFile('file path', 'file name'),
          size: ImageSize.size1024,
          prompt: 'King Snake'));

  print(response.data?.last?.url);
}

Variations

  void variation() async {
  final request =
  Variation(image: EditFile('${image?.path}', '${image?.name}'));
  final response = await openAI.editor.variation(request);

  print(response.data?.last?.url);
}

Cancel Generate #

Stop Generate Prompt

 _openAI
        .onChatCompletionSSE(request: request, onCancel: onCancel);

///CancelData
CancelData? mCancel;
void onCancel(CancelData cancelData) {
  mCancel = cancelData;
}

mCancel?.cancelToken.cancel("canceled ");

Stop Edit
- image
- prompt

openAI.edit.editImage(request,onCancel: onCancel);

///CancelData
CancelData? mCancel;
void onCancel(CancelData cancelData) {
  mCancel = cancelData;
}

mCancel?.cancelToken.cancel("canceled edit image");

Stop Embedding

openAI.embed.embedding(request,onCancel: onCancel);

///CancelData
CancelData? mCancel;
void onCancel(CancelData cancelData) {
  mCancel = cancelData;
}

mCancel?.cancelToken.cancel("canceled embedding");

Stop Audio
- translate
- transcript

openAI.audio.transcribes(request,onCancel: onCancel);

///CancelData
CancelData? mCancel;
void onCancel(CancelData cancelData) {
  mCancel = cancelData;
}

mCancel?.cancelToken.cancel("canceled audio transcribes");

Stop File
- upload file
- get file
- delete file

openAI.file.uploadFile(request,onCancel: onCancel);

///CancelData
CancelData? mCancel;
void onCancel(CancelData cancelData) {
  mCancel = cancelData;
}

mCancel?.cancelToken.cancel("canceled uploadFile");

File #

Get File

void getFile() async {
  final response = await openAI.file.get();
  print(response.data);
}

Upload File

void uploadFile() async {
  final request = UploadFile(file: EditFile('file-path', 'file-name'),purpose: 'fine-tune');
  final response = await openAI.file.uploadFile(request);
  print(response);
}

Delete File

  void delete() async {
  final response = await openAI.file.delete("file-Id");
  print(response);
}

Retrieve File

  void retrieve() async {
  final response = await openAI.file.retrieve("file-Id");
  print(response);
}

Retrieve Content File

  void retrieveContent() async {
  final response = await openAI.file.retrieveContent("file-Id");
  print(response);
}

Audio #

Audio Translate

void audioTranslate() async {
  final mAudio = File('mp3-path');
  final request =
  AudioRequest(file: EditFile(mAudio.path, 'name'), prompt: '...');

  final response = await openAI.audio.translate(request);
}

Audio Transcribe

void audioTranscribe() async {
  final mAudio = File('mp3-path');
  final request =
  AudioRequest(file: EditFile(mAudio.path, 'name'), prompt: '...');

  final response = await openAI.audio.transcribes(request);
}

Embedding #

Embedding

void embedding() async {
  final request = EmbedRequest(
          model: EmbedModel.embedTextModel,
          input: 'The food was delicious and the waiter');

  final response = await openAI.embed.embedding(request);

  print(response.data.last.embedding);
}

Fine Tune #

Create Fine Tune

void createTineTune() async {
  final request = CreateFineTune(trainingFile: 'The ID of an uploaded file');
  final response = await openAI.fineTune.create(request);
}

Fine Tune List

 void tineTuneList() async {
    final response = await openAI.fineTune.list();
  }

Fine Tune List Stream (SSE)

 void tineTuneListStream() {
    openAI.fineTune.listStream('fineTuneId').listen((it) {
      ///handled data
    });
  }

Fine Tune Get by Id

void tineTuneById() async {
    final response = await openAI.fineTune.retrieve('fineTuneId');
  }

Cancel Fine Tune

  void tineTuneCancel() async {
    final response = await openAI.fineTune.cancel('fineTuneId');
  }

Delete Fine Tune

 void deleteTineTune() async {
    final response = await openAI.fineTune.delete('model');
  }

Moderations #

Create Moderation

  void createModeration() async {
  final response = await openAI.moderation
          .create(input: 'input', model: ModerationModel.textLast);
}

Model&Engine #

Model List
- List and describe the various models available in the API. You can refer to the Models documentation to understand what models are available and the differences between them.
- https://beta.openai.com/docs/api-reference/models

final models = await openAI.listModel();

Engine List
- Lists the currently available (non-finetuned) models, and provides basic information about each one such as the owner and availability.
- https://beta.openai.com/docs/api-reference/engines

final engines = await openAI.listEngine();

Translate App #

ChatGPT Demo App #

chat_gpt_sdk 2.1.8
chat_gpt_sdk: ^2.1.8 copied to clipboard

Metadata

ChatGPT Application with flutter #

Unofficial #

OpenAI Powerful Library Support GPT-4 #

Features #

Install Package #

Create OpenAI Instance #

Change Access Token #

Complete Text #

Chat Complete (GPT-4 and GPT-3.5) #

Error Handle #

Q&A #

Generate Image With Prompt #

Edit #

Cancel Generate #

File #

Audio #

Embedding #

Fine Tune #

Moderations #

Model&Engine #

Translate App #

ChatGPT Demo App #

Video Tutorials #

Docs (Support Thai.) #

← Metadata

Publisher

Metadata

License

Dependencies

More

chat_gpt_sdk 2.1.8 chat_gpt_sdk: ^2.1.8 copied to clipboard

Metadata

ChatGPT Application with flutter #

Unofficial #

OpenAI Powerful Library Support GPT-4 #

Features #

Install Package #

Create OpenAI Instance #

Change Access Token #

Complete Text #

Chat Complete (GPT-4 and GPT-3.5) #

Error Handle #

Q&A #

Generate Image With Prompt #

Edit #

Cancel Generate #

File #

Audio #

Embedding #

Fine Tune #

Moderations #

Model&Engine #

Translate App #

ChatGPT Demo App #

Video Tutorials #

Docs (Support Thai.) #

← Metadata

Publisher

Metadata

License

Dependencies

More

chat_gpt_sdk 2.1.8
chat_gpt_sdk: ^2.1.8 copied to clipboard