Global Exception Handling

Global Exception Handling in Asp.Net Core Web API

Exception handling is an important part of any web application, and Asp.Net Core Web API is no different. This guide will provide an overview of global exception handling in Asp.Net Core Web API, including tips and examples.

What is Global Exception Handling?

Global exception handling is a way of catching any errors that occur when an application is running, and allowing them to be handled in a consistent and predictable manner. This helps to ensure that any errors that occur are logged, handled correctly and prevented from affecting other parts of the application.

What are the Benefits of Global Exception Handling?

The main benefit of global exception handling is that it allows errors to be caught and handled in a consistent and predictable manner. This helps to ensure that any errors that occur are logged and handled correctly, preventing them from affecting other parts of the application and making sure that any errors are quickly identified and fixed. Additionally, global exception handling can help to reduce the amount of time required to debug any issues that may arise.

Implementing Global Exception Handling in Asp.Net Core Web API

Global exception handling can be implemented in Asp.Net Core Web API by creating a custom ExceptionFilterAttribute class. This class can be used to log any errors that occur and handle them in a consistent manner.

To create a custom ExceptionFilterAttribute class, you will need to implement the OnException method. This method will be called whenever an exception occurs and will allow you to log the exception and handle it in a consistent manner.

Example: Logging Exceptions in Asp.Net Core Web API

The following example shows how to create a custom ExceptionFilterAttribute class that will log any exceptions that occur in Asp.Net Core Web API:

public class CustomExceptionFilterAttribute : ExceptionFilterAttribute
{
    private readonly ILogger _logger;

    public CustomExceptionFilterAttribute(ILogger logger)
    {
        _logger = logger;
    }

    public override void OnException(ExceptionContext context)
    {
        _logger.LogError(context.Exception.Message);
    }
}

The above example shows how to create a custom ExceptionFilterAttribute class that will log any exceptions that occur in Asp.Net Core Web API. The OnException method is called whenever an exception occurs, and the LogError method is used to log the exception message.

Tips for Using Global Exception Handling in Asp.Net Core Web API

• Make sure to log all exceptions that occur, including any details about the exception that may be helpful for debugging.
• Ensure that any exceptions are handled in a consistent manner, to ensure that errors are quickly identified and fixed.
• Make sure to use appropriate keywords in your exception handler classes to make them easier to find.
• Consider using an exception handling library such as Serilog to help manage exceptions in a more structured and consistent way.

Conclusion

Global exception handling is an important part of any web application, and Asp.Net Core Web API is no different. This guide has provided an overview of global exception handling in Asp.Net Core Web API, including tips and examples. By following the advice and examples provided in this guide, developers should be able to implement global exception handling in their Asp.Net Core Web API applications.