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

Implementing the item controller

This section focuses on building the routes to read, writing the catalog data, and exposing the functionalities we already built in the domain layer using the HTTP protocol. Our controller will include the verbs listed in the following routing table:

Verb	Path	Description
GET	/api/items	Retrieves all the items present in our catalog
GET	/api/items/{id}	Retrieves the item with the corresponding ID
POST	/api/items/	Creates a new item by taking the body payload of the request
PUT	/api/items/{id}	Updates the item with the corresponding ID

The preceding routes allow web service consumers to get, add, and update the Item entities. Before starting the implementation, let's look at an overview ...