Blockchain-Based Library Management System

Vision

The Blockchain-Based Library Management System aims to revolutionize the traditional library management system by leveraging blockchain technology. It provides a decentralized, transparent, and tamper-proof solution for managing book inventories. Users can interact with the system to add, issue, and return books, ensuring efficient management and real-time updates on the status of each book.

Flowchart

 +------------------+
 |   User Interface |
 +--------+---------+
          |
          v
 +--------+---------+
 |  Connect Wallet  |
 +--------+---------+
          |
          v
 +--------+---------+
 |  Interact with   |
 | Smart Contract   |
 +--------+---------+
          |
  +-------+--------+
  |                |
  v                v
+---------+    +----------+
| Add Book|    |Issue/Return|
+---------+    |   Book     |
               +----------+

1. Connect Wallet: Users connect their Ethereum wallet to the application.
2. Interact with Smart Contract: The system communicates with the deployed smart contract.
3. Add Book: Users can add new books to the system.
4. Issue/Return Book: Users can issue or return books, with status updates recorded on the blockchain.

Smart Contract

The smart contract manages the library's book inventory with the following functionalities:

• Add Book: Add a new book with a unique ID and title.
• Issue Book: Mark a book as issued.
• Return Book: Mark a book as returned.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract Library {
    struct Book {
        uint id;
        string title;
        bool isIssued;
    }

    mapping(uint => Book) public books;
    uint public bookCount;

    event BookAdded(uint bookId, string title);
    event BookIssued(uint bookId);
    event BookReturned(uint bookId);

    function addBook(string memory _title) public {
        books[++bookCount] = Book(bookCount, _title, false);
        emit BookAdded(bookCount, _title);
    }

    function issueBook(uint _bookId) public {
        require(!books[_bookId].isIssued, "Book already issued");
        books[_bookId].isIssued = true;
        emit BookIssued(_bookId);
    }

    function returnBook(uint _bookId) public {
        require(books[_bookId].isIssued, "Book not issued");
        books[_bookId].isIssued = false;
        emit BookReturned(_bookId);
    }
}

Contract Address

• Educhain Contract Address: 0x9f37a05fd08b347c351289f81881bc2dfb82ce47

Future Scope

1. Enhanced User Authentication: Integrate user authentication to manage access control for issuing and returning books.
2. Admin Panel: Develop an admin panel for better book and user management.
3. Advanced Book Tracking: Implement features to track book history, including who issued or returned the book and when.
4. Mobile Integration: Develop mobile applications to access and manage the library system on the go.

Contact

For inquiries, contributions, or support, please contact:

• Email: [email protected]
• LinkedIn: https://www.linkedin.com/in/ripun-basumatary-a62292300/
• GitHub: https://github.com/theripunbty

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Feel free to reach out if you have any questions or suggestions. Happy coding!