📚 Infotech Library Management System

A Backend Node.js + MongoDB-based library management system supporting book rentals, user roles, and borrowing limits.

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🗂️ Project Structure

infotech/ ├── config/ ✅ DB setup ├── collections/ ✅ Schema definitions for MongoDB initialization ├── server/ ✅ Express server files │ ├── routes/ ✅ All API route definitions │ ├── controllers/ ✅ Route logic (business flow) │ ├── services/ ✅ DB/service logic layer │ ├── models/ ✅ Mongoose models (optional if using Mongoose later) │ ├── middlewares/ ✅ Auth, error handling etc. │ └── index.js ✅ Main server entry point ├── .env ✅ Environment configuration └── package.json

yaml Copy Edit

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🧰 Prerequisites

• Node.js installed
• MongoDB installed and running locally

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🚀 Installation & Setup

1. Clone the repository

   git clone <repo-url>
   cd infotech

Install dependencies

bash Copy Edit npm install Setup MongoDB database

Run this command to initialize your MongoDB database with collections:

bash Copy Edit node config/db.js Create a .env file (example content):

ini Copy Edit MONGO_URI=mongodb://localhost:27017 PORT=5000 Start the development server

bash Copy Edit npm run dev 📡 API Overview Base URL: http://localhost:5000

Modules include:

📘 Book rental & return

👤 User registration with role selection

🔒 Borrow limit enforcement

✅ Admin approval for book requests

📌 Notes Book availability is managed via inventory (numberOfCopies)

Borrowing is restricted based on approved and unreturned books only

Admin APIs for approval and management are also available

🛠 Tech Stack Node.js

Express

MongoDB