Getting Started with the ChatGPT API and Javascript

Getting Started with the ChatGPT API and Javascript

The ChatGPT API makes it super easy to create chatbots with Javascript and Node. Here's an implementation of a CLI chatbot powered by

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

var rl = require('readline-sync');

async function startAssistant() {
   var messages = [];

   var input = rl.question('What type of chatbot would you like to create? > ');
   messages.push({"role": "system", "content": "Stay in character. You are " + input});

   input = rl.question("Say hello to your new chatbot > ");
   while(true) {
       messages.push({"role": "user", "content": input});

       const completion = await openai.createChatCompletion({
         model: "gpt-3.5-turbo",
         messages: messages,

       var reply =[0].message.content;
       messages.push({"role": "assistant", "content": reply});
       input = rl.question("> ");


And here’s what it looks like in action:


If you want to run this code yourself there are three key things you’ll need to do:

  1. Put the above code in a file code index.js
  2. Use these instructions from OpenAI to save your OpenAI API key as an environment variable.
  3. Install these 2 dependencies:
npm install openai
npm install readline-sync

Then you can run node index.js to interact with ChatGPT yourself.

Have fun!