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
![OpenAI API key](https://i0.wp.com/tutorial.eyehunts.com/wp-content/uploads/2023/03/OpenAI-API-access-and-get-your-API-key..jpg?resize=687%2C515&ssl=1)
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.
![Implement ChatGPT in NodeJS with openai-api](https://i0.wp.com/tutorial.eyehunts.com/wp-content/uploads/2023/03/Implement-ChatGPT-in-NodeJS-with-openai-api.jpg?resize=1200%2C821&ssl=1)
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