Implement ChatGPT in NodeJS with openai-api

To implement ChatGPT in NodeJS, you can use the OpenAI API to connect to the GPT-3.5 model and send requests to generate text.

This code snippet uses the openai-api package to connect to the OpenAI API using your API key. To implement ChatGPT in NodeJS with OpenAI API, you will need to follow the below steps:

1. Install NodeJS and npm (Node Package Manager) on your computer.

Read this tutorial: NodeJs Hello World

2. Create a new directory for your project and navigate to it in the terminal.

3. Use npm to initialize a new NodeJS project:

npm init

4. Install the openai package by running the following command:

npm install openai
npm install openai-api

5. Create an OpenAI API key from the OpenAI dashboard. : https://platform.openai.com/account/api-keys

6. Create a new file called chat.js (or whatever you want to call it) in your project directory.

7. Initialize the OpenAI API client in your NodeJS application using the following code:

const openai = require('openai-api');

// Set your OpenAI API key
const OPENAI_API_KEY = 'ADD_YOUR';
const client = new openai(OPENAI_API_KEY);

8. Now, you can use the client object to interact with the OpenAI API. For example, to generate text using the GPT-3 model, you can use the complete method is shown below:

Here is Compete code.

const openai = require('openai-api');

// Set your OpenAI API key
const OPENAI_API_KEY = 'ADD_YOUR';
const client = new openai(OPENAI_API_KEY);

// Set the model to use
const model = 'text-davinci-002';

// Set the prompt to start the conversation
const prompt = 'Hello, how can I assist you today?';

// Set the temperature of the response (0 = deterministic, 1 = very creative)
const temperature = 0.5;

// Create a function to send a message to the model and receive a response
async function sendMessage(message) {
  const promptWithMessage = prompt + '\nUser: ' + message + '\nAI:';

  const response = await client.complete({
    engine: model,
    prompt: promptWithMessage,
    maxTokens: 1024,
    temperature: temperature,
  });

  const answer = response.data.choices[0].text;
  return answer;
}

// Example conversation loop
(async () => {
  let message = '';
  while (message.toLowerCase() !== 'exit') {
    message = await askQuestion();
    if (message.toLowerCase() !== 'exit') {
      const response = await sendMessage(message);
      console.log('AI: ' + response);
    }
  }
})();

// Create a function to get user input from the console
function askQuestion() {
  const readline = require('readline').createInterface({
    input: process.stdin,
    output: process.stdout,
  });
  return new Promise((resolve, reject) => {
    readline.question('You: ', (message) => {
      readline.close();
      resolve(message);
    });
  });
}

This code is a Node.js script that demonstrates how to use the OpenAI API to create a simple chatbot that can hold a conversation with a user via the console.

9. Run the app.js file with NodeJS:

Node app.js

Output: Here is the command line chat screenshot.

Video tutorial

This is the basic code of node js and chatbot, do comment if you have any doubts or suggestions on this.

Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.

OS: Windows 10

Code: HTML 5 Version