Introduction

• There are generally three ways to deal with errors; IExceptionFilter, UseExceptionHandler (middleware), UseExceptionHandler (route)

Exception

• for custom error handling to be caught using try and catch (Local Exception catch)
• by using try and catch, you can propagate the error
• Domain specific errors

IExceptionFilter

• operats at a higer level within the asp.net ore middleware pipeline (Global exception catch)
• Basically you handle exceptions domatically with Exception then you get that or catch that exception using IExceptionFilter to add more details to the exception.
• need to add unhandledException if (!context.ExceptionHAndled) is not true to deal with uncaptured exceptions.