Getting Resources by ID

The ability to retrieve individual books by their unique identifier adds a crucial layer of specificity to our virtual library. This section will implement this functionality in our books-api, allowing users to pinpoint the book they seek using its unique identifier within our virtual library.

Updating BooksController

Our application will have a route to fetch a book by its unique identifier. Following the RESTful and HTTP standards, we’ll create the endpoint /books/:id using the GET HTTP method. This method helps retrieve data without modifying it, making it the perfect choice for our needs.

Let’s create our route by following these steps:

1. Import the Get decorator to specify the HTTP verb and route for this endpoint: