[
  {
    "author": {
      "authorId": 1,
      "firstName": "sample string 2",
      "lastName": "sample string 3"
    },
    "category": {
      "categoryId": 1,
      "categoryName": "sample string 2",
      "categoryDescription": "sample string 3"
    },
    "ownersUsers": [
      {
        "userId": 2,
        "password": "1233",
        "name": "Andrwwww",
        "surname": "Iasko"
      }
    ],
    "bookId": 1,
    "bookName": "sample string 4",
    "numberOfPages": 0,
    "booksLeft": 0,
    "isbn": null
  },
  {
    "author": {
      "authorId": 2,
      "firstName": "sample string 2",
      "lastName": "sample string 3"
    },
    "category": {
      "categoryId": 2,
      "categoryName": "sample string 2",
      "categoryDescription": "sample string 3"
    },
    "ownersUsers": [
      {
        "userId": 1,
        "password": "123",
        "name": "Andrew",
        "surname": "Iasko"
      },
      {
        "userId": 2,
        "password": "1233",
        "name": "Andrwwww",
        "surname": "Iasko"
      }
    ],
    "bookId": 2,
    "bookName": "sample string 5",
    "numberOfPages": 0,
    "booksLeft": 0,
    "isbn": null
  }
]