ChatGPT realtime conversation on node, dotenv, readline-sync

Directory structure

- node_modules
- .env
- index.js
- package.json

package.json

{
  "name": "chatbot",
  "version": "1.0.0",
  "description": "Chatbot powered by ChatGPT",
  "main": "index.js",
  "scripts": {
    "start": "node index.js"
  },
  "author": "t3b",
  "license": "MIT",
  "dependencies": {
    "colors": "^1.4.0",
    "dotenv": "^16.3.1",
    "openai": "^4.35.0",
    "readline-sync": "^1.4.10"
  }
}

New and shorter syntax for OpenAI's 4.x completions.
index.js

const openai = require('openai');
const dotenv = require('dotenv');
const readlineSync = require('readline-sync');
const colors = require('colors');
/*
import openai from './config/open-ai.js';
import readlineSync from 'readline-sync';
import colors from 'colors';
*/
dotenv.config();
/*
const openai = new OpenAI({
	apiKey: process.env.OPENAI_API_KEY
});
*/
const client = new openai.OpenAI(process.env.OPENAI_API_KEY);
async function main() {
  console.log(colors.bold.green('Welcome to the Chatbot Program!'));
  console.log(colors.bold.green('You can start chatting with the bot.'));
  const chatHistory = []; // Store conversation history
  while (true) {
    const userInput = readlineSync.question(colors.yellow('You: '));
    try {
      // Construct messages by iterating over the history
      const messages = chatHistory.map(([role, content]) => ({
        role,
        content,
      }));
      // Add latest user input
      messages.push({ role: 'user', content: userInput });
      // Call the API with user input & history
      const completion = await client.chat.completions.create({
	model: 'gpt-3.5-turbo',
	messages: messages, 
	temperature: 0.8, 
	max_tokens: 2500
	});
      // Get completion text/content
      const completionText = completion.choices[0].message.content;
      if (userInput.toLowerCase() === 'exit') {
        console.log(colors.green('Bot: ') + completionText);
        return;
      }
      console.log(colors.green('Bot: ') + completionText);
      // Update history with user input and assistant response
      chatHistory.push(['user', userInput]);
      chatHistory.push(['assistant', completionText]);
    } catch (error) {
      console.error(colors.red(error));
    }
  }
}
main();

.env

OPENAI_API_KEY=Lorem-Ipsum