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ASP.NET Core 6: implementing Custom Middleware Not Invoking Downstream Middleware

👀 Views: 27 đŸ’Ŧ Answers: 1 📅 Created: 2025-07-11
asp.net-core middleware logging C#

I've looked through the documentation and I'm still confused about I'm learning this framework and I'm currently working with a scenario with custom middleware in my ASP.NET Core 6 application. I implemented a middleware to log incoming requests, but it seems that after my middleware runs, the downstream middleware is not executing properly. I've checked my middleware registration order in `Startup.cs` and it's correctly placed before the call to `app.UseEndpoints()`. Here's the middleware code: ```csharp public class RequestLoggingMiddleware { private readonly RequestDelegate _next; public RequestLoggingMiddleware(RequestDelegate next) { _next = next; } public async Task InvokeAsync(HttpContext context) { // Log the request Console.WriteLine($"Request: {context.Request.Method} {context.Request.Path}"); await _next(context); // Call the next middleware Console.WriteLine($"Response: {context.Response.StatusCode}"); } } ``` I registered it in `Configure` method like this: ```csharp public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { app.UseMiddleware<RequestLoggingMiddleware>(); app.UseRouting(); app.UseAuthorization(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); }); } ``` However, when I run the application, I'm only seeing the request logs, but the endpoints are never hit, and thus there's no response generated. I'm not getting any exceptions, just a timeout on the client side after a few seconds. I've also tried debugging but need to see any other middleware being executed after mine. I looked into the order of middleware execution and everything seems correct according to the documentation. Am I missing something in my implementation? Has anyone else faced a similar scenario where custom middleware seems to block downstream middleware execution? This is for a microservice running on macOS. This is part of a larger microservice I'm building. Thanks for taking the time to read this! I'm on Windows 11 using the latest version of C#.