QR Code Generator

A simple Node.js application that generates QR codes from URLs using command-line interface.

Features

• Interactive command-line interface using inquirer
• Generates QR codes in PNG format
• Saves the input URL to a text file for reference
• Built with ES6 modules

Prerequisites

• Node.js (version 12 or higher)
• npm (Node Package Manager)

Installation

1. Clone this repository:

   git clone https://github.com/KrishnaNaicker/QR_code_generator.git
   cd QR_code_generator

2. Install dependencies:

   npm install

Usage

Run the application:

node index.js

The application will:

1. Prompt you to enter a URL
2. Generate a QR code image (qr_img.png)
3. Save the entered URL to a text file (URL.txt)

Dependencies

• inquirer: ^9.3.7 - Interactive command-line user interface
• qr-image: ^3.2.0 - QR code image generator
• fs: ^0.0.1-security - File system operations (Node.js native module)

Project Structure

QR_code_generator/
├── index.js          # Main application file
├── package.json      # Project dependencies and metadata
├── package-lock.json # Dependency lock file
├── README.md         # Project documentation
├── .gitignore        # Git ignore rules
├── qr_img.png        # Generated QR code image (created after running)
├── qr_img.svg        # SVG version of QR code (if generated)
└── URL.txt           # Saved URL text file (created after running)

How It Works

1. The application uses the inquirer package to create an interactive prompt
2. User enters a URL when prompted
3. The qr-image package converts the URL into a QR code
4. The QR code is saved as qr_img.png
5. The original URL is saved to URL.txt using Node.js fs module

Example

$ node index.js
? Enter the URL to generate a QR code: https://www.example.com
The file has been saved!

After running, you'll find:

• qr_img.png - QR code image
• URL.txt - Text file containing the URL

License

ISC

Author

Krishna Naicker

Contributing

1. Fork the repository
2. Create a feature branch
3. Commit your changes
4. Push to the branch
5. Create a Pull Request

Support

If you encounter any issues or have questions, please open an issue on GitHub.