Mini Book Shelf

A full-stack web application that allows authenticated users to manage their personal book collections. Built with modern technologies including React, NestJS, TypeORM, and PostgreSQL.

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Features

Authentication

• User registration and login with JWT authentication
• Secure route protection
• Token-based session management
• Password hashing with bcrypt

Book Management

• Create, read, update, and delete personal books
• User-specific book collections
• Input validation and error handling

Security

• JWT token authentication
• Protected API endpoints
• User data isolation
• Input sanitization and validation

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Technology Stack

Frontend

• React 18 – Modern React with hooks
• TypeScript – Type-safe JavaScript
• Axios – HTTP client for API requests
• Tailwind CSS – Utility-first CSS framework
• React Router – Client-side routing

Backend

• NestJS – Progressive Node.js framework
• TypeORM – Object-relational mapping
• PostgreSQL – Relational database
• JWT – JSON Web Token authentication
• bcrypt – Password hashing
• class-validator – Input validation

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Setup & Installation

1. Clone the Repository

git clone https://github.com/your-username/mini-book-shelf.git
cd mini-book-shelf

2. Backend Setup (NestJS)

cd backend npm install `` Create a .env file in the backend directory:

DATABASE_URL=postgres://your_db_user:your_db_pass@localhost:5432/your_db_name
JWT_SECRET=your_jwt_secret

Run migrations and start the backend:

npm run start:dev

3. Frontend Setup (React)

cd ../frontend
npm install
# or
yarn install

Create a .env file in the frontend directory:

VITE_API_URL=http://localhost:3000

Start the frontend:

npm run dev

What I Learned

• Improved NestJS Proficiency: Gained deeper understanding of modules, services, and guards in NestJS.

• Mastered JWT Authentication in NestJS: Learned how to securely implement token-based auth, and integrate it with protected endpoints.

• Explored TypeORM: Learned how to define entities, relationships, and handle queries using the repository pattern.

• Overcame Axios + JWT Challenges: Dealt with tricky bugs related to missing or invalid tokens, ensuring proper Axios interceptor behavior and secure session handling.