Book Rental System

Requirement

stakeholder: shop owner features:

• create bookshelf
• create book book doesn't have to be exist in shop, owner just want to create it owner can set price, duration, category, series
• inbound book into shop there's a time when owner bought a book and register it into shop and book might have more than one books in the same title owner need to print a barcode and paste on the book each barcode represent the unique id of the book
• put book into shelf owner need to put book into shelf by scan book's barcode and shelf's barcode
• find book to find book, owner need to enter book code and system will give the book status and shelf location
• register customer customer need to have an account and their code use to rent and return books
• rent owner need to scan customer code first then scan book to rent then system will calculate total price and display due date for each book after paid system generate invoice
• return owner need to scan book code system will calculate total fine if book are past the due date and wait for confirm, after paid system generate invoice
• dashboard owner should have a dashboard to view today tasks
  • late return customer: display customer name, telephone, total fine and total books
  • customer profile: display customer info, rent history, un-return book, total spend on rent, total spend on fine
  • book list: book name, book code, location, rent status
  • book detail: book info, how many books we have, location of book, total earn, total earn from rent, total earn from fine
  • client status book rental store should have a single screen for owner to watch and client screen for customer to rent or return by himself in dashboard it should show state of client screen: idle, renting, returning, error (with error message)
  • earning I want to see earning for each hours

Architect

• Database
  • redis (GCP, free plan) use as message broker and database
• Hosting
  • Firebase function for API
  • Firebase hosting for customer screen
  • Firebase hosting for owner screen
• Stack
  • Typescript
  • Nuxt.js
  • Firebase function

API

Customer

• create rent session POST /me

  // response current customer information
  {
    "allow": true,
    " customer": {...}
  }

• Add a book into rent session PUT /rent

  // request
  {
    "books": "{BOOK_CODE}"
  }
  // response current cart data
  {
    "items": [
      {
        "book": "{BOOK_CODE}",
        "due_date": "...",
        "qty": "...",
        "amount": "..."
      }
    ],
    "customer": "{CUSTOMER_CODE}",
    "total_amount": "..."
  }

• Remove book from rent session DELETE /rent

  {
    "books": "{BOOK_CODE}"
  }

• Get rent info GET /rent
• Confirm rent POST /rent