gpt.js

// set type: module in package.json to use import statements

import Keyv from 'keyv' // https://www.npmjs.com/package/keyv
import { ChatGPTAPI } from "chatgpt"; // https://www.npmjs.com/package/chatgpt

// Set REDIS_URL to your Redis URL
const messageStore = new Keyv(`sqlite://history.db`)
import { v4, validate } from 'uuid'

/**
 * [CORE] ChatGPT Function
 * @param {string} name - username to identify previous and current conversation
 * @param {string} prompt - message/prompt
 */
async function ask (name, prompt) {
    // Check given username or generate a random UUID
    const conversationName = name // or setup other ways to generate a conversation name,like string to a valid v5 uuid would be enough
    const conversation = await messageStore.get(conversationName) || {}

    const lastMessage = conversation.lastMessageId ? conversation[conversation.lastMessageId] : undefined
    const parentMessageId = lastMessage ? lastMessage.id : v4()

    const api = new ChatGPTAPI(
        {
            apiBaseUrl: 'https://api.pawan.krd/v1',
            apiKey: 'pk-***',
            debug: true,
            timeoutMs: 15000,
            completionParams: {
                max_tokens: 1000,
                temperature: 0.5,
                presence_penalty: 0,
                frequency_penalty: 0
            },
            getMessageById: async (id) => { return conversation[id] },
            upsertMessage: async (message) => {
                // Pawan's proxy generates a uuid (v4) as message id, but others don't
                // so i'm overriding message.id with a random uuid
                if (!validate(message.id)) {
                    message.id = v4()
                    if (message.detail) {
                        message.detail.id = message.id
                    }
                }
                conversation[message.id] = message
                conversation.lastMessageId = message.id
                await messageStore.set(conversationName, conversation) // set expiration time 5min -> await messageStore.set(conversationName, conversation, 5 * 60 * 1000)
            }
        })
    return await api.sendMessage(prompt, { parentMessageId, name })
}

// Call
// for same username, using different prompts will automaticly fetch last messages and send them as an array
ask('RONY', 'who is nelson mandela').then(async (response) => {
    console.log(response.text)
    await messageStore.disconnect()
})