Deploying to Heroku using Javascript

Heroku is a cloud platform that enables developers to deploy, manage, and scale web applications. In this tutorial, we will learn how to deploy a Javascript web application to Heroku.

Prerequisites

Before we start, make sure you have the following installed on your system:

• Node.js
• npm
• Heroku CLI

Steps to Deploy

1. Create a new directory and navigate to it in your terminal.

mkdir my-app
cd my-app

2. Initialize a new Node.js project using npm.

npm init -y

3. Install the necessary dependencies for your web application.

npm install express body-parser --save

4. Create an index.js file in your directory and add the following code to it:

const express = require('express');
const bodyParser = require('body-parser');

const app = express();

app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

const PORT = process.env.PORT || 3000;

app.listen(PORT, () => {
  console.log(`Server running on port ${PORT}`);
});

app.get('/', (req, res) => {
  res.send('Hello World!');
});

5. Create a Procfile in your project directory and add the following line:

web: node index.js

6. Initialize a new git repository and commit your changes.

git init
git add .
git commit -m "Initial commit"

7. Log in to your Heroku account using the CLI.

heroku login

8. Create a new Heroku app in your terminal.

heroku create your-app-name

9. Push your changes to Heroku.

git push heroku master

10. Open your web application in the browser using the Heroku URL.

heroku open

Congratulations! You have successfully deployed a Javascript web application to Heroku using the Heroku CLI.

Conclusion

In this tutorial, we learned how to deploy a Javascript web application to Heroku using the Heroku CLI. We installed the necessary dependencies, created an index.js file, set up a Procfile, initialized a git repository, and pushed our changes to Heroku. The Heroku platform provides a simple and powerful solution for deploying, managing, and scaling web applications.