Issue with Custom Exception Handling in C# 10 Middleware - Unhandled Exceptions Not Captured
I just started working with I'm attempting to set up I'm currently developing an ASP.NET Core 6 application and I've implemented custom middleware to handle exceptions globally... However, it seems that some unhandled exceptions are not being captured by my middleware, leading to default error handling behavior. My middleware is set up like this: ```csharp public class ExceptionHandlingMiddleware { private readonly RequestDelegate _next; public ExceptionHandlingMiddleware(RequestDelegate next) { _next = next; } public async Task InvokeAsync(HttpContext context) { try { await _next(context); } catch (Exception ex) { await HandleExceptionAsync(context, ex); } } private Task HandleExceptionAsync(HttpContext context, Exception ex) { context.Response.ContentType = "application/json"; context.Response.StatusCode = (int)HttpStatusCode.InternalServerError; return context.Response.WriteAsync(new { StatusCode = context.Response.StatusCode, Message = "Internal Server Error from the custom middleware.", Detail = ex.Message }.ToString()); } } ``` I've registered the middleware in the `Configure` method of `Startup.cs` like this: ```csharp public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { app.UseMiddleware<ExceptionHandlingMiddleware>(); // Other middlewares... } ``` The issue arises when I make a request that causes a `NullReferenceException` within a service that is called by the controller, and it seems that the exception is not caught by my middleware. Instead, the default exception handling kicks in, returning a standard error response without my custom message. I have made sure there are no other middlewares behaving unexpectedly, and I am handling all asynchronous calls properly. I've tried wrapping the service call in a try-catch block directly in the controller, and that works, but I expected my middleware to handle all exceptions regardless of where they occur. Is there something I'm missing in my middleware setup? How can I ensure that all exceptions are routed through my custom middleware for handling? The project is a web app built with C#. Has anyone dealt with something similar?