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GET
/
api
/
books
/
{id}
Get Book
curl --request GET \
  --url https://api.example.com/api/books/{id}
{
  "success": true,
  "data": {
    "id": 123,
    "isbn": "<string>",
    "title": "<string>",
    "description": "<string>",
    "coverImageUrl": "<string>",
    "authors": [
      {
        "id": 123,
        "name": "<string>"
      }
    ],
    "category": {
      "id": 123,
      "name": "<string>"
    }
  },
  "message": "<string>"
}

​
Endpoint

GET /api/books/{id}
Retrieves detailed information about a specific book.

​
Authentication

This endpoint is publicly accessible and does not require authentication.

​
Path Parameters

​
id
long
required
The unique identifier of the book to retrieve

​
Response

​
success
boolean
required
Indicates if the request was successful
​
data
object
required
The book object
​
id
long
Unique identifier for the book
​
isbn
string
International Standard Book Number in normalized format (all hyphens and spaces removed)
​
title
string
Book title
​
description
string
Detailed book description (max 1000 characters)
​
coverImageUrl
string
URL to the book’s cover image
​
authors
array
Array of author objects (many-to-many relationship)
​
id
long
Author’s unique identifier
​
name
string
Author’s name
​
category
object
Category object the book belongs to
​
id
long
Category’s unique identifier
​
name
string
Category name
​
message
string
Optional message (usually null on success)

​
Example Request

curl -X GET "http://localhost:8080/api/books/1"

​
Example Response

{
  "success": true,
  "data": {
    "id": 1,
    "isbn": "9780134685991",
    "title": "Effective Java",
    "description": "A comprehensive guide to Java programming best practices and design patterns. This third edition covers Java 7, 8, and 9, including new features like lambdas, streams, and modules.",
    "coverImageUrl": "https://example.com/covers/effective-java.jpg",
    "authors": [
      {
        "id": 1,
        "name": "Joshua Bloch"
      }
    ],
    "category": {
      "id": 2,
      "name": "Programming"
    }
  },
  "message": null
}

​
Error Responses

​
Book Not Found (404)

{
  "success": false,
  "data": null,
  "message": "Book not found with id: 999"
}

​
Notes

  • The ISBN is stored in normalized format (all non-numeric characters except ‘X’ are removed)
  • Books have a many-to-many relationship with authors - a book can have multiple authors
  • Each book belongs to exactly one category (many-to-one relationship)
  • The coverImageUrl field may be null if no cover image is available
  • Source: BookController.java:29-32

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