How to handle exceptions globally in a .NET Core API using middleware?
How to handle exceptions globally in a .NET Core API using middleware?
13430-Aug-2023
Updated on 02-Sep-2023
Aryan Kumar
02-Sep-2023To handle exceptions globally in a .NET Core API using middleware, you can use the
UseExceptionHandler
middleware. TheUseExceptionHandler
middleware catches all unhandled exceptions and redirects them to a handler that you specify.To use the
UseExceptionHandler
middleware, you need to add it to the middleware pipeline in your Startup class. The following code shows how to do this:C#
The
/error
route is the route that theUseExceptionHandler
middleware will redirect to when it catches an unhandled exception. You can customize the route by passing a different value to theUseExceptionHandler
method.The handler that you specify for the
UseExceptionHandler
middleware is responsible for handling the unhandled exceptions. The following code shows a simple example of a handler that logs the exception to the console:C#
This handler sets the response status code to 500 (Internal Server Error) and the response content type to "application/json". The handler then serializes the exception object to JSON and writes it to the response stream.
You can customize the handler to do whatever you want with the unhandled exception. For example, you could send an email notification to the developers, or you could retry the operation a few seconds later.
By using the
UseExceptionHandler
middleware, you can ensure that all unhandled exceptions are handled gracefully in your .NET Core API. This will help you to improve the reliability of your application and provide a better experience for your users.Here are some additional tips for handling exceptions globally in a .NET Core API using middleware:
UseExceptionHandler
middleware.By following these tips, you can ensure that your .NET Core API can handle exceptions gracefully and provide a good user experience.