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PUT
/
books
/
{isbn}
Create or Update Book
curl --request PUT \
  --url https://api.example.com/books/{isbn} \
  --header 'Content-Type: application/json' \
  --data '
{
  "isbn": "<string>",
  "title": "<string>",
  "author": {
    "author.id": 123,
    "author.name": "<string>",
    "author.age": 123
  },
  "stock": 123,
  "coverImage": "<string>"
}
'
{
  "isbn": "<string>",
  "title": "<string>",
  "author": {
    "author.id": 123,
    "author.name": "<string>",
    "author.age": 123
  },
  "stock": 123,
  "coverImage": "<string>"
}
Create a new book or update an existing book by ISBN. This endpoint performs an upsert operation - if the book exists, it will be updated; if not, it will be created.

​
Authentication

This endpoint requires HTTP Basic Authentication.

​
Path Parameters

​
isbn
string
required
The ISBN of the book. This is used as the unique identifier for the book.

​
Request Body

​
isbn
string
required
The ISBN of the book. Should match the path parameter.
​
title
string
required
The title of the book.
​
author
object
required
The author information for the book.
​
author.id
integer
The unique identifier of the author.
​
author.name
string
required
The name of the author.
​
author.age
integer
The age of the author.
​
stock
integer
required
The number of copies available in stock.
​
coverImage
string
URL or path to the book’s cover image. This field is optional.

​
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: Book was successfully updated
  • 201 Created: Book was successfully created
  • 401 Unauthorized: Authentication credentials are missing or invalid

​
Example Request

curl -X PUT https://api.example.com/books/978-0-7475-3269-9 \
  -u username:password \
  -H "Content-Type: application/json" \
  -d '{
    "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"
  }'

​
Example Response

{
  "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"
}

​
Notes

  • This is a full update operation (PUT). All fields must be provided in the request body.
  • If you want to update only specific fields, use the Partial Update endpoint instead.
  • The author cascade operation means the author will be created or updated along with the book.

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