Multiple implementations of IExceptionHandler

Question

What is the best way to handle multiple implementations of IExceptionHandler in WebAPI?

config.Services.Replace(typeof(IExceptionHandler), new ExceptionHandlerFilter());
config.Services.Add(typeof(IExceptionHandler), new ValidationExceptionHandlerFilter());

When attempting to register more than 1 implementation, the startup throws an exception:

The service type IExceptionHandler is not supported.\r\nParameter name: serviceType

But the API suggests multiple handlers are supported since there's a ShouldHandle property to override on ExceptionHandler class.

Answer 1

You can't register more the a IExceptionHandler

We support registering multiple exception loggers but only a single exception handler.

source:Global Error Handling in ASP.NET Web API

The ShouldHandle properties is used to get only the exception at the top of the stack