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⚙️ Node.js Command Line Interface (CLI) Application

A modern Node.js command line tool built with JavaScript.
This application demonstrates strong command-line design, argument parsing, and interactive terminal interfaces using popular Node.js libraries.

🧩 Project Overview

This CLI allows users to execute various commands interactively or through direct arguments.
It showcases modern JavaScript (ES6+) practices, asynchronous programming, and robust error handling — ideal for demonstrating backend and system-level programming proficiency.

🚀 Features

  • ⚡ Command-Based Interface – Execute flexible commands with multiple options and parameters
  • 💬 Interactive Prompts – Collect user input using friendly terminal prompts
  • 🧠 Modern JavaScript (ES6+) – Async/await patterns, modular code, and clean architecture
  • 🛡️ Error Handling – Graceful error management and descriptive user feedback
  • ⚙️ Configuration Management – Load and save user configurations dynamically

🧰 Technologies Used

Technology Purpose
Node.js Runtime environment for JavaScript
Commander.js Command-line argument parsing
Inquirer.js Interactive terminal interfaces
Chalk Colorized and styled CLI output
JavaScript (ES6+) Core programming language

🛠️ Installation

Prerequisites

  • Node.js v12.0.0+
  • npm (Node Package Manager)

Setup Steps

# Clone the repository
git clone https://github.com/HanaATawfik/my_node_cli_app.git

# Navigate to the project directory
cd my_node_cli_app

# Install dependencies
npm install

# (Optional) Link the CLI globally
npm link

💻 Usage

Basic Commands

# Show help information
mycli --help

# Run the default command
mycli

# Run a specific command with options
mycli <command> --option <value>

Examples

# Example 1: Process a file
mycli process --file data.json

# Example 2: Generate a report
mycli report --format pdf --output report.pdf

# Example 3: Run in interactive mode
mycli interactive

🧱 Project Structure

my_node_cli_app/
├── bin/            # Executable entry points
├── lib/            # Core functionality
├── commands/       # Individual command implementations
├── utils/          # Utility modules
├── tests/          # Test suite
├── package.json    # Project configuration and dependencies
└── README.md       # Documentation

🧩 Development Guide

Adding New Commands

  1. Create a new file inside commands/
  2. Implement your logic and export it as a module
  3. Register it in the main CLI entry point

Running Tests

npm test

💡 Skills Demonstrated

  • Command-line interface (CLI) design and architecture
  • Node.js ecosystem mastery
  • Modern asynchronous JavaScript (Promises / async-await)
  • Interactive user interface design for terminal applications
  • Dependency and package management using npm
  • Code modularization and maintainable project structure

🔮 Future Enhancements

  • Add configuration persistence
  • Implement a plugin-based architecture
  • Expand automated test coverage
  • Create an interactive dashboard or visualization mode

📜 License

This project is available for educational and professional review purposes. Feel free to explore, fork, and learn from the code.

👩‍💻 Author

Hana A. Tawfik Backend Software Engineer & Creative Problem Solver