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GET
/
books
/
{isbn}
Get Book
curl --request GET \
  --url https://api.example.com/books/{isbn}
{
  "isbn": "<string>",
  "title": "<string>",
  "author": {
    "author.id": 123,
    "author.name": "<string>",
    "author.age": 123
  },
  "stock": 123,
  "coverImage": "<string>"
}
Retrieve a specific book by its ISBN.

​
Authentication

This endpoint requires HTTP Basic Authentication.

​
Path Parameters

​
isbn
string
required
The ISBN of the book to retrieve.

​
Response

​
isbn
string
The ISBN of the book.
​
title
string
The title of the book.
​
author
object
The author information.
​
author.id
integer
The unique identifier of the author.
​
author.name
string
The name of the author.
​
author.age
integer
The age of the author.
​
stock
integer
The number of copies available in stock.
​
coverImage
string
URL or path to the book’s cover image. Only included if set.

​
Status Codes

  • 200 OK: Successfully retrieved the book
  • 404 Not Found: Book with the specified ISBN does not exist
  • 401 Unauthorized: Authentication credentials are missing or invalid

​
Example Request

curl -X GET https://api.example.com/books/978-0-7475-3269-9 \
  -u username:password

​
Example Response

​
Success (200 OK)

{
  "isbn": "978-0-7475-3269-9",
  "title": "Harry Potter and the Philosopher Stone",
  "author": {
    "id": 1,
    "name": "J.K. Rowling",
    "age": 58
  },
  "stock": 15,
  "coverImage": "https://example.com/covers/hp1.jpg"
}

​
Not Found (404)

If the book does not exist, the endpoint returns a 404 status code with an empty response body.

​
Notes

  • The ISBN must be an exact match (case-sensitive).
  • If the book has no cover image, the coverImage field will be omitted from the response.

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