ASP.NET 5: What is the recommended approach to catch and log all unhandled exceptions?

Question

I'm building an api app. In the old ASP.NET there was Application_Error() to catch all unhandled exceptions

protected void Application_Error()
{
    var exception = Server.GetLastError();
    _logger.FatalException("Fatal error.", exception);
}

What should be used in ASP.NET 5?

Answer 1

The solution is to add a custom filter. This is how it could be done:

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc(options => options.Filters.Add(new MyExceptionFilter()));
}

Now the custom filter should derive from IExceptionFilter:

public class MyExceptionFilter : ActionFilterAttribute, IExceptionFilter
{
    public void OnException(ExceptionContext context)
    {

    }
}

Unfortunately, it doesn't catch exceptions during Startup.Configuration()