ChatHub - Adapter

A simple-to-use, one-for-all SDK for interacting with trending LLM models.

Key Features

• All-In-One SDK: use only one package to talk to ChatGPT, GPT-4, Claude-2, Claude-Instant, and PaLM at once

• Universal conversation: conversations may be used across different LLMs, e.g.switching from ChatGPT to Claude during one conversation.

• Conversation storage: conversations stored in local file system, with customizable cache directory and simple, black-boxed method for manipulation.

• Conversation setup: customize your conversation context for role-playing, scenario enacting .etc

Installation & Use

Install

Run npm i chathub-adapter.

Use

To use this package, you will first need to import the ChatHub class and instantiate it.

import { ChatHub } from "chathub-adapter";

const Hub = new ChatHub(
 // Required. If there are multiple models, load them all in the array
 [{ model: `YourModelNameHere`, APIKey: `YourAPIKeyHere` }]
);

// To send a message
const response = await Hub.sendMessage(`Hello there!`, `YourDesiredModel`);
// If you are using `ChatGPT`, you can expect `General Kenobi!`
console.log(response.text);

// Continuing a conversation
const anotherResponse = await Hub.sendMessage(`How are you?`, `YourDesiredModel`, {
 // Pass the corresponding `conversationId`
 conversationId: response.conversationId
});
console.log(anotherResponse.text);

Types and Interfaces

Currently supported models: ChatGPT, GPT-4, Claude-v1, Claude-v2, Claude-Instant,ChatPaLM2.

Please note that this package will not grant you access to models you previously have no access to. e.g. Using this package will not allow you to use GPT-4 if your account is not valid to use its API.

Type Name	Allow Contents
ModelOptions	Names of all supported models (case sensitive)
ChatOptions	Properties: conversationId, context, and systemMessage
ModelConfig	Configuration for your model, has two properties: model and APIKey.
Conversation	The interface in which conversation messages and their corresponding id
ConversationMessage	Properties: role and content. role allows user, system, and assistant; content is string
conversationId	A UUID v4 for identifying conversations
context	A general context in which the conversation takes place
systemMessage	A information-prompting message for LLM, used to provide contextual information that should not be mentioned by the user

Class and Methods

The main exported class for managing conversations and models is ChatHub.

ChatHub has the following public methods

Class ChatHub

Method Name	Parameters	Return Value	Function
constructor	config, cacheDir	An instance of ChatHub	Instantiate a ChatHub class
sendMessage	text,model,options	ChatResponse	Send your message to designated model
hasModel	model	boolean	Check whether a certain model is activated in the ChatHub instance
getAllModels	none	IterableIterator<ModelOptions>	An iterator for all instantiated models
generateText	prompt	Promise<string>	The generated text with TextPaLM(currently only supports TextPaLM)

Class ConversationManager

If you want to import/export or manage your conversation in some other ways, you can instantiate a ConversationManager. Method are named as clear as possible.

---

This package is still being updated, star the GitHub repo to stay tuned!