ASP.NET Web API: Non-descriptive 500 Internal Server Error

Question

As title says, I’ve got 500 Internal Server Error from GET request to an IQueryable action. The body of the error is empty. That error happens after my action returns result

Answer 1

Fredrik Normén wrote a great blog post called ASP.NET Web API Exception Handling about that topic. His solution uses custom exception classes and an exception filter attribute that can be applied to all ApiController action methods.