Hands-On RESTful Web Services with ASP.NET Core 3

Designing entities

We can now proceed with the design phase of the entities we need for this implementation. Let's start with the Item class, which will be the central entity in our domain model. It is a representation of a music album, and it contains all the attributes and characteristics related to albums, including the description, name, release date, and format. The entity will also provide some additional information that is usually present in a catalog, such as available stock, a picture, and the price.

Let's start by designing a diagram to describe our code:

This diagram defines the entities involved in the service:

• Item is the primary ...