Global Error Handling in ASP.NET Core: From Middleware to Modern Handlers

Explores three approaches to global error handling in ASP.NET Core: traditional middleware, IProblemDetailsService for standardized responses, and the modern IExceptionHandler introduced in .NET 8. The article demonstrates how to implement each approach with code examples, showing the evolution from simple try-catch middleware to chainable, focused exception handlers. It covers practical scenarios like validation error handling with FluentValidation and emphasizes the benefits of the newer IExceptionHandler approach for maintainability and testability.