Library Management System

This is a Node.js-based library management system using Express and Mongoose. It provides an API to manage users, books, and transactions (issuing and returning books).

Features

• Manage users and books.
• Issue and return books.
• Search for books and retrieve information about transactions.

Prerequisites

• Node.js
• MongoDB

Installation

1. Clone the repository:

   git clone https://github.com/aditya-singh-99/Library-Management-API.git
   cd Library-Management-API
   npm install

2. Install the dependencies:

   npm install

3. Set up environment variables:

   Copy the .env.sample file to create a .env file and update the necessary values:

   cp .env.sample .env

   Edit the .env file to add your MongoDB URIs:

   PORT=Your_Port
   MONGO_LIBRARY_URI=Library_DB_Connection_String
   MONGO_TRANSACTIONS_URI=Transactions_DB_Connection_String

4. Start the server:

   npm install

Sure! Here are your API endpoints in Markdown format:

API Endpoints

Users

• Get All Users
  • Endpoint: GET /users/all
  • Description: Retrieve all users.

Books

• Get All Books

  • Endpoint: GET /books/all
  • Description: Retrieve all books in the library.

• Search Books

  • Endpoint: GET /books/search
  • Description: Search books by name, category, or rent range.
  • Query Params:
    • name (optional) - Search by book name
    • category (optional) - Search by book category
    • rent_min (optional) - Minimum rent value
    • rent_max (optional) - Maximum rent value

Transactions

• Issue Book

  • Endpoint: POST /transactions/issue
  • Description: Issue a book to a user.
  • Request Body:
    • name - User name
    • email - User email
    • phone - User phone
    • title - Book title

• Return Book

  • Endpoint: POST /transactions/return
  • Description: Return a book issued to a user.
  • Request Body:
    • name - User name
    • email - User email
    • phone - User phone
    • title - Book title

• Get Issued Books

  • Endpoint: GET /transactions/issued
  • Description: Retrieve books currently issued.
  • Query Params:
    • title (required) - Book title

• Get Total Rent by Book

  • Endpoint: GET /transactions/book
  • Description: Retrieve the total rent generated by a specific book.
  • Query Params:
    • title (required) - Book title

• Get Transactions by User

  • Endpoint: GET /transactions/user
  • Description: Retrieve all transactions related to a specific user.
  • Query Params:
    • email (required) - User email

• Get Transactions in Date Range

  • Endpoint: GET /transactions/range
  • Description: Retrieve all transactions issued within a specific date range.
  • Query Params:
    • startDate (required) - Start date in MM-DD-YYYY format
    • endDate (required) - End date in MM-DD-YYYY format

Error Handling

All endpoints return appropriate HTTP status codes and error messages if an error occurs (e.g., 404 Not Found if a resource is not found).

Technologies Used

• Node.js: Backend runtime.
• Express: Web framework for Node.js.
• Mongoose: MongoDB object modeling for Node.js.