bongcoy / backend-book-service

Eigen

Backend Test Case

Entities

• Member
• Book

Use Case

• Members can borrow books with conditions
  • Members may not borrow more than 2 books
  • Borrowed books are not borrowed by other members
  • Member is currently not being penalized
• Member returns the book with conditions
  • The returned book is a book that the member has borrowed
  • If the book is returned after more than 7 days, the member will be subject to a penalty. Member with penalty cannot able to borrow the book for 3 days
• Check the book
  • Shows all existing books and quantities
  • Books that are being borrowed are not counted
• Member check
  • Shows all existing members
  • The number of books being borrowed by each member

Mock Data

• Books

[
  {
    code: "JK-45",
    title: "Harry Potter",
    author: "J.K Rowling",
    stock: 1,
  },
  {
    code: "SHR-1",
    title: "A Study in Scarlet",
    author: "Arthur Conan Doyle",
    stock: 1,
  },
  {
    code: "TW-11",
    title: "Twilight",
    author: "Stephenie Meyer",
    stock: 1,
  },
  {
    code: "HOB-83",
    title: "The Hobbit, or There and Back Again",
    author: "J.R.R. Tolkien",
    stock: 1,
  },
  {
    code: "NRN-7",
    title: "The Lion, the Witch and the Wardrobe",
    author: "C.S. Lewis",
    stock: 1,
  },
];

• Members

[
  {
    code: "M001",
    name: "Angga",
  },
  {
    code: "M002",
    name: "Ferry",
  },
  {
    code: "M003",
    name: "Putri",
  },
];

Requirements

• it should be use any framework, but prefered NestJS Framework Or ExpressJS
• it should be use Swagger as API Documentation
• it should be use Database (SQL/NoSQL)
• it should be open sourced on your github repo

Extras

• Implement DDD Pattern
• Implement Unit Testing

Notes

• Feel free to add some structure or plugins

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ALGORITMA ✅

Kerjakan dengan menggunakan bahasa pemograman yg anda kuasai, buat folder terpisah untuk soal ini

1. Terdapat string "NEGIE1", silahkan reverse alphabet nya dengan angka tetap diakhir kata Hasil = "EIGEN1"

2. Diberikan contoh sebuah kalimat, silahkan cari kata terpanjang dari kalimat tersebut, jika ada kata dengan panjang yang sama silahkan ambil salah satu

Contoh:

const sentence = "Saya sangat senang mengerjakan soal algoritma"

longest(sentence)
// mengerjakan: 11 character

3. Terdapat dua buah array yaitu array INPUT dan array QUERY, silahkan tentukan berapa kali kata dalam QUERY terdapat pada array INPUT

Contoh:

INPUT = ['xc', 'dz', 'bbb', 'dz']
QUERY = ['bbb', 'ac', 'dz']

OUTPUT = [1, 0, 2] karena kata 'bbb' terdapat 1 pada INPUT, kata 'ac' tidak ada pada INPUT, dan kata 'dz' terdapat 2 pada INPUT

4. Silahkan cari hasil dari pengurangan dari jumlah diagonal sebuah matrik NxN Contoh:

Contoh:

Matrix = [[1, 2, 0], [4, 5, 6], [7, 8, 9]]

diagonal pertama = 1 + 5 + 9 = 15
diagonal kedua = 0 + 5 + 7 = 12

maka hasilnya adalah 15 - 12 = 3