C# 7.1 and .NET Core 2.0 - Modern Cross-Platform Development - Third Edition

Understanding ASP.NET Core MVC controllers

From the route and an incoming URL, ASP.NET Core MVC knows the name of the controller and action, so it will look for a class that implements an interface named IController. To simplify the requirements, Microsoft supplies a class named Controller that your classes can inherit from.

The responsibilities of a controller are as follows:

• To extract parameters from the HTTP request
• To use the parameters to fetch the correct model and pass it to the correct view client as an HTTP response
• To return the results from the view to the client as an HTTP response

Expand the Controllers folder and double-click on the file named HomeController.cs:

public class HomeController : Controller {  public IActionResult ...