IoC.cs

public interface IApplicationSingleton
{
    void MethodCalledEachRequest();
}

public interface IRequestScopedService
{
    void DoSomething();
}

public class ApplicationSingleton : IApplicationSingleton
{
    private readonly Func<IRequestScopedService> _factory;
  
    public ApplicationSingleton(Func<IRequestScopedService> factory)
    {
        _factory = factory;
    }
  
    public void MethodCalledEachRequest()
    {
        using (var requestScopedService = _factory.Invoke())
        {
            requestScopedFactory.DoSomething();
        }
    }
}