Learn to change the default behavior and return HTTP 404 when action methods in ASP.NET Core return null values.

Surprisingly, although ASP.NET Core provides plenty of options for handling 404 errors gracefully, the ASP.NET Core MVC runtime doesn’t take advantage of them by default.

Eric Vogel provides step-by-step instructions to create an ASP.NET 5 Core web app in Visual Studio 2019 and embed a Power BI report in it.