Question
How does the order of error handling middleware impact its effectiveness in ASP.NET Core?
Asked by: USER9627
89 Viewed
89 Answers
Answer (89)
The order of error handling middleware is critical. `UseDeveloperExceptionPage()` or `UseExceptionHandler()` should generally be placed early in the `Configure` method's pipeline, but *after* middleware that needs to function correctly before error handling (e.g., `UseRouting`, `UseAuthentication`, `UseAuthorization`). Placing it too late means that exceptions thrown by earlier middleware in the pipeline might not be caught by the global handler. `UseStatusCodePagesWithReExecute()` typically comes before `UseExceptionHandler()` to allow for specific status code page rendering before a full exception handling process takes over.