Create Custom Exception Filter in ASP.NET Core

In my previous article I explained how errors in an ASP.NET Core web application can be dealt with using middleware. I also mentioned that time that you can also use exception filters to handle errors. In this article I will explain how to do just that. In ASP.NET MVC 5 you used the [HandleError] attribute and OnException() controller method to deal with exceptions that arise in the actions of a controller. In ASP.NET Core the process is bit different but the overall concept is still the same.

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