How can I handle errors in ASP.NET Core logging?

How can I handle errors in ASP.NET Core logging?

In ASP.NET Core, you can handle errors by using middleware to catch exceptions and log them. Would you like to see an example?

Yes, please provide an example of middleware for error handling.

You can create a custom middleware like this:

public class ErrorHandlingMiddleware {
    private readonly RequestDelegate _next;

    public ErrorHandlingMiddleware(RequestDelegate next) {
        _next = next;
    }

    public async Task InvokeAsync(HttpContext context) {
        try {
            await _next(context);
        } catch (Exception ex) {
            // Log the exception
            // Return a custom error response
        }
    }
}

You would then register this middleware in the Configure method of your Startup class.

How do I log the exception details in that middleware?

You can use the built-in logging framework. Inject ILogger<ErrorHandlingMiddleware> into your middleware and log the exception like this:

catch (Exception ex) {
    _logger.LogError(ex, "An error occurred: {Message}", ex.Message);
    // Return a custom error response
}