Project_17

📝 Project 17 – Registration Form CLI (MongoDB backend)

A Command-Line Registration System that stores user data in MongoDB Atlas.
Users can register with username, email, and password or list all registered users.

---

🛠️ Tech Stack

---

✨ Features

• 📝 Register new users with name, username, email, and password.
• 🔐 Passwords are hidden during entry (getpass).
• 🛑 Prevents duplicate usernames or emails.
• 📜 List all registered users (without passwords).
• 🌐 Uses MongoDB Atlas cloud database as backend.

---

📦 Installation & Setup

1. Clone the repository

   git clone <your-repo-url>
   cd Project_17_Registration_Form_CLI

2. Install dependencies

   pip install -r requirements.txt

3. Setup MongoDB URI in .env file

   MONGO_URI=mongodb+srv://<username>:<password>@cluster0.xxxxx.mongodb.net/

4. Run the program

   python registration_cli.py --reg -n "Arjun" -u "arjun01" -e "arjun@example.com"

---

🖥️ Example Usage

Register a User

python registration_cli.py --reg -n "Riya" -u "riya88" -e "riya@example.com"
Password: ******
✅ Registration successful!

List Users

python registration_cli.py --list
{'name': 'Riya', 'username': 'riya88', 'email': 'riya@example.com'}
{'name': 'Arjun', 'username': 'arjun01', 'email': 'arjun@example.com'}

---

🧠 Key Learnings

• How to build a CLI tool with argparse.
• How to use PyMongo for database operations.
• How to securely store API credentials using .env.
• How to safely hide passwords in CLI.

---

📄 requirements.txt

pymongo
python-dotenv

---

🚀 Possible Improvements

• Add password hashing (e.g., bcrypt) instead of storing plain text.
• Add login authentication with username + password.
• Add update/delete user functionality.
• Create a GUI version with Tkinter or Flask.