How deeply does ASP.NET Core in Action, 3e cover AddControllers?

Distinguishes controller services from Razor view services and pairs registration with MapControllers, without detailing service internals.

AddControllers

As explained in ASP.NET Core in Action, 3e

AddControllers is an ASP.NET Core service-registration method that adds the services required for controllers without adding Razor view-rendering services.

AddControllers registers the services required for ASP.NET Core web API controllers, without registering Razor view-rendering services. It is the controller-service choice for a web API project rather than an MVC application that renders views. section 20.1

Register controllers in Program.cs

WebApplicationBuilder builder = WebApplication.CreateBuilder(args); builder.Services.AddControllers(); WebApplication app = builder.Build(); app.MapControllers(); app.Run(); AddControllers supplies the controller services; MapControllers exposes controller actions as endpoints. A controller action can then respond to requests such as GET /fruit. section 20.1

How ASP.NET Core in Action, 3e covers it

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Related concepts

mvc frameworkconfigures · A web application framework based on the Model–View–Controller architectural pattern, in which application concerns are separated into models, views, and controllers.
AddControllersWithViewsalternative to · AddControllersWithViews is an ASP.NET Core service-registration method that adds the services required for MVC controllers and views.
controllerconfigures · A controller is a software component or architectural role that receives inputs or requests and coordinates their handling by other parts of an application.
AddControllersAsServices()configured by · AddControllersAsServices() is an ASP.NET Core MVC extension method that registers controller types as services in the dependency injection container.

This explainer was generated by Manning's knowledge graph from the text of ASP.NET Core in Action, 3e. The section links point to the parts of the book it draws on.