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

Implementing the mapping layer

This subsection and the following one describe the implementation of two mapping approaches we can use in our application: the manual approach and the reflection approach.

The manual approach involves the definition and implementation of our own mapper classes:

using Catalog.Domain.Entities;using Catalog.Domain.Requests.Item;using Catalog.Domain.Responses;namespace Catalog.Domain.Mappers{    public interface IItemMapper    {        Item Map(AddItemRequest request);        Item Map(EditItemRequest request);        ItemResponse Map(Item item);    }}

The preceding code defines an IItemMapper interface, which provides two methods to map AddItemRequest and EditItemRequest in the Item type. In addition, it also defines the mapping method signature ...