Description: The library management app allows users to read e-books. The librarian is the admin. They are responsible for adding sections and books and for approving, rejecting or terminating user requests. The users can see a list of all the books available, request them and if approved, can get access to the PDF version of these books, online. Both user and librarian can use the search function to see what is available in the library. Technology Used:

1. Flask: For API
2. JWT Security: For authorization and authentication
3. CORS: Used to authorize resources shared with external third parties
4. VueJS: JavaScript library for building UIs
5. SQLite: Database for storing application data
6. Redis: Caching
7. Celery: Background jobs
8. Bootstrap: Framework for styling UIs DB Schema Design:
9. User: a. id (Primary Key, Integer) b. username (String, max length 150, unique, not null) c. password (String, max length 256, not null) d. role (String, max length 100, not null) e. email (String, max length 256, not null) f. last_login (DateTime)
10. Sections: a. id (Primary Key, Integer) b. name (String, max length 256, unique, not null) c. date_created (DateTime) d. description (String, max length 256)
11. Book: a. id (Primary Key, Integer) b. name (String, max length 100) c. author (String, max length 256) d. section_id (Integer, Foreign key Sections id) e. description (String, max length 256) f. section (String, max length 256) g. pdf (String, max length 512)
12. Requests: a. id (Primary key, Integer) b. requested_user (Integer, Foreign key User id) c. requested_book (Integer, Foreign key Book id) d. user (String, max length 256) e. book (String, max length 256) f. approved (Boolean)
13. Issued: a. id (Primary Key, Integer) b. requested_id (Integer, Foreign key Request id) c. issued_user (Integer, Foreign key User id) d. issued_book (Integer, Foreign key Book id) e. date_returned (DateTime) f. book (String, max length 256) g. author (String, max length 256) h. description (String, max length 256) i. pdf (String, max length 512)
14. Feedback: a. id (Primary Key, Integer) b. user_id (Integer, Foreign key User id) c. book_id (Integer, Foreign key Book id) d. issue_id (Integer, Foreign key Issued id) e. feedback (String, max length 256)
15. Read: a. id (Integer, Primary key) b. book_id (Integer, Foreign key Book id) c. user_id (Integer, Foreign key User id) d. timestamp (DateTime) API Designs
16. CRUD for Sections
17. CRUD for Books
18. Validation of input fields
19. Backend validation Architecture There are 3 Python files;
20. app.py
21. celery_config.py
22. tasks.py

Screenshots:

Video Link: https://drive.google.com/file/d/1P3gvgEi1CBat7yFJ5LbVEsAe3cj3nOAt/view?usp=drive_link