index.js

import dotenv from "dotenv";
import { Client, GatewayIntentBits } from "discord.js";
import { Configuration, OpenAIApi } from "openai";

dotenv.config();

const client = new Client({
  intents: [
    GatewayIntentBits.Guilds,
    GatewayIntentBits.GuildMessages,
    GatewayIntentBits.MessageContent,
  ],
});

const openai = new OpenAIApi(new Configuration({
    apiKey: process.env.OPENAI_API_KEY,
  })
);

client.on("messageCreate", async function (message) {
  if (message.author.bot) return;
  
  try {
    const response = await openai.createChatCompletion({
        model: "gpt-3.5-turbo",
        messages: [
            {role: "system", content: "You are a helpful assistant who responds succinctly"},
            {role: "user", content: message.content}
        ],
      });

    const content = response.data.choices[0].message;
    return message.reply(content);

  } catch (err) {
    return message.reply(
      "As an AI robot, I errored out."
    );
  }
});

client.login(process.env.BOT_TOKEN);