internal static IAsyncPolicy <HttpResponseMessage> GetCircuitBreakerPolicy(CBR cbr)
{
return(HttpPolicyExtensions
.HandleTransientHttpError()
.CircuitBreakerAsync(cbr.ExceptionsAllowedBeforeBreaking, TimeSpan.FromMinutes(cbr.DurationOfBreak))
//.CircuitBreakerAsync<HttpResponseMessage>(cbr.ExceptionsAllowedBeforeBreaking,
// TimeSpan.FromMinutes(cbr.DurationOfBreak),
// onBreak: onBreak, onReset: onReset)
);
}
internal static IAsyncPolicy <HttpResponseMessage> GetRetryPolicy(CBR cbr)
{
return(HttpPolicyExtensions
.HandleTransientHttpError()
//.Or<Polly.Timeout.TimeoutRejectedException>() // ** ADDED **
//.Or<System.Net.Sockets.SocketException>() // ** ADDED **
.OrResult(msg => msg.StatusCode == System.Net.HttpStatusCode.NotFound)
//.OrResult(msg => msg.StatusCode == System.Net.HttpStatusCode.BadRequest)
//.OrResult(msg => msg.StatusCode == System.Net.HttpStatusCode.Forbidden)
//.OrResult(msg => msg.StatusCode == System.Net.HttpStatusCode.Unauthorized)
.WaitAndRetryAsync(cbr.RetryCount, retryAttempt => TimeSpan.FromSeconds(Math.Pow(cbr.SleepDuration, retryAttempt)))
//.WrapAsync(Policy.TimeoutAsync(TimeSpan.FromSeconds(20)))
);
}
static async Task MainAsync(string[] args)
{
var cbrConfig = new CBR
{
HandlerLifetime = 5,
ExceptionsAllowedBeforeBreaking = 2,
DurationOfBreak = 1,
RetryCount = 3,
SleepDuration = 2,
UserAgent = "YUP"
};
//CreandoServiceProvider [Test]
IServiceCollection service = new ServiceCollection();
service
.AddHttpClient <IDemoWebApiClient, DemoWebApiClient>()
.ConfigureHttpClient(c =>
{
c.BaseAddress = new Uri("https://localhost:5001/");
//c.DefaultRequestHeaders.Add("Accept", "application/json");
c.DefaultRequestHeaders.Accept.Clear();
c.MaxResponseContentBufferSize = int.MaxValue;
//c.Timeout = TimeSpan.FromSeconds(1000);
})
.SetHandlerLifetime(TimeSpan.FromMinutes(cbrConfig.HandlerLifetime))
.AddPolicyHandler(Policies.GetRetryPolicy(cbrConfig))
//.AddPolicyHandler(request => request.Method == HttpMethod.Get ? Policies.GetRetryPolicy(cbrConfig) : Policies.GetNoOpPolicy())
.AddPolicyHandler(Policies.GetCircuitBreakerPolicy(cbrConfig))
//Abreviado
//.AddTransientHttpErrorPolicy(policyBuilder => policyBuilder.WaitAndRetryAsync(cbrConfig.RetryCount, retryAttempt => TimeSpan.FromSeconds(Math.Pow(cbrConfig.SleepDuration, retryAttempt))))
//.AddTransientHttpErrorPolicy(policyBuilder => policyBuilder.CircuitBreakerAsync(cbrConfig.ExceptionsAllowedBeforeBreaking, TimeSpan.FromSeconds(cbrConfig.DurationOfBreak)))
;
var serviceProvider = service.BuildServiceProvider();
var webApiClient = serviceProvider.GetService <IDemoWebApiClient>();
int counts = 1;
Console.WriteLine("Comenzando Pruebas");
while (counts < 5)
{
Console.WriteLine($"Prueba Numero: {counts}");
try
{
var resultado = await webApiClient.GetConfiguracionAsync();
Console.WriteLine(JsonConvert.SerializeObject(resultado));
}
catch (Exception ex)
{
Console.WriteLine("Tipo de Exception: Type is {0}", ex.GetType());
if (ex.InnerException != null)
{
Console.WriteLine("Tipo de InnerException: Type is {0}", ex.InnerException.GetType());
}
}
counts++;
}
Console.WriteLine("Finish");
}
