Is ApiController deprecated in .NET Core

Question

Is it true that \"ApiController will get deprecated in .NET Core\"? Asking since I\'m planning to use it in new projects.

Answer 1

The [ApiController] attribute actually got added back in ASP.NET Core version 2.1.

Features coupled with the attribute are:

• Validation errors automatically trigger an HTTP 400 response.
• No more need to define [FromBody], [FromRoute], ... attributes explicitly

Links to the docs:

• https://docs.microsoft.com/en-us/aspnet/core/aspnetcore-2.1?view=aspnetcore-2.1#apicontroller-actionresult
• https://docs.microsoft.com/en-us/aspnet/core/web-api/index?view=aspnetcore-2.1#annotate-class-with-apicontrollerattribute

Update

There is also the baseclass ControllerBase for controllers to inherit from which is suited for api-controllers because it ommits all view-related functionality.

• https://docs.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.mvc.controllerbase?view=aspnetcore-2.1