CSharp-Coder

Learn ASP.NET Core global exception handling with middleware, IExceptionHandler and Problem Details. Copy runnable C# examples and ship safer APIs today. If your API still wraps every action in a try/catch , you are paying a tax on every endpoint you write. ASP.NET Core global exception handling lets you catch, log, and format every unhandled exception in exactly one place — so your controllers stay focused on business logic and your clients always receive a predictable error payload. In this guide you will learn the three approaches that ship with .NET (exception handler middleware, custom middleware, and the modern IExceptionHandler interface), how to return standards-compliant Problem Details responses, and how to wire in structured logging with a correlation ID your support team can actually search. Everything here targets .NET 8 and .NET 9/10, and every snippet is runnable in a minimal API or MVC project. Why Global Exception Handling Matters Three concrete problems get ...