(Quick Reference) ### Service Usage A service contains business logic that can be reused across a Grails application. In Grails a service is a class with a name that ends in the convention "Service" and lives in the `grails-app/services` directory. A service can be created with the create-service command:
    grails create-service org.bookstore.Book
or with your favourite IDE or text editor.
    package org.bookstore

    class BookService {
        Book[] getBooks() {
            Book.list() as Book[]
        }
    }
Refer to the user guide topic on Services for more information. | Quick Reference (hide)