Polly_Circuit_Breaker_Client.cs

public class Client
{
    private readonly ProductService _productService;

    public Client()
    {
        _productService = new ProductService();
    }

    private string Call()
    {
        try
        {
            return _productService.GetSample().Result;
        }
        catch (AggregateException ex)
        {
            return ex.InnerException.GetType().FullName;
        }
    }

    public void Test_5_Calls()
    {
        for (int i = 1; i <= 5; i++)
        {
            Console.WriteLine($"Call {i}: {Call()}");
        }
    }
}