🔐 Authentication System using React.js & Node.js

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🖥️ Frontend – Built with React.js

• Tailwind CSS – For mobile-responsive and modern styling.
• Zod – Schema-based form validation for cleaner and safer input handling.
• React Router DOM – Client-side routing for navigating between pages.
• React Toastify – Display real-time notifications (e.g., login success, registration errors).
• Axios – For making HTTP requests to the backend API.

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🔧 Backend – Node.js (Express.js)

• JSON Web Token (jsonwebtoken) – Token-based authentication to verify user sessions.
• Nodemon – Auto-restarts the server during development for efficient coding.
• Mongoose – interacting with MongoDB.
• Bcrypt.js – Securely hashes passwords before storing them in the database.
• CORS – Allows cross-origin requests.

  ⚠️ Avoid using * in production; specify your frontend URL for better security.

• Dotenv – Loads environment variables from a .env file to keep sensitive data private.

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🗃️ Database

• MongoDB – A NoSQL database to store user data.

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⚙️ Environment Setup

Create a .env file in the backend root folder with the following:

MONGO_URI="your_mongo_database_connection_string"
JWT_SECRET="your_secret_key_for_jwt"