Startup ConfigurationSettingsValidationStartupFilter

8.Post.SettingsValidation.Startup.cs

public class Startup
{
	public IConfiguration Configuration { get; }

	public void ConfigureServices(IServiceCollection services)
	{
		services.AddLogging();
		services.AddSingleton(Configuration);

		services.AddTransient<IStartupFilter, ConfigurationSettingValidationStartupFilter>();
		services.RegisterSettings<MySettings>(Configuration);

		// ...
	}
	
	// ... código omitido
}