public ProjectsController(IAzureDevOpsApi azureDevOpsApi, AsyncInjectBehaviourPolicy behaviorPolicy)
{
this.azureDevOpsApi = azureDevOpsApi;
this.behaviorPolicy = behaviorPolicy;
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
#region Behavior
AsyncInjectBehaviourPolicy behaviorPolicy = MonkeyPolicy.InjectBehaviourAsync(
async() =>
{
await Task.Delay(100);
Debug.WriteLine("Do what you want here");
},
1, // 25% of the time
async() => await Task.FromResult(true));
services.AddSingleton(behaviorPolicy);
#endregion
#region Latency
var latencyPolicy = MonkeyPolicy.InjectLatencyAsync <HttpResponseMessage>(
TimeSpan.FromSeconds(5), // delay di 5 secondi
0.5, // 50% delle richieste
() => true); // abilitata
IAsyncPolicy <HttpResponseMessage> timeoutPolicy = Policy.TimeoutAsync <HttpResponseMessage>(2);
#endregion
#region Fault
var faultHttpResponseMessage = new HttpResponseMessage(HttpStatusCode.InternalServerError)
{
Content = new StringContent("Simmy Internal Server Error")
};
AsyncInjectOutcomePolicy <HttpResponseMessage> faultPolicy = MonkeyPolicy.InjectFaultAsync(
faultHttpResponseMessage,
injectionRate: .5,
enabled: () => true
);
#endregion
#region Retry
IAsyncPolicy <HttpResponseMessage> retryPolicy = Policy
.HandleResult <HttpResponseMessage>(r => !r.IsSuccessStatusCode)
.Or <Exception>()
.RetryAsync(2, onRetry: (response, retryCount) =>
{
if (response.Result?.StatusCode != HttpStatusCode.InternalServerError)
{
//Do somethig
}
else
{
//Log something
}
});
#endregion
AsyncPolicyWrap <HttpResponseMessage> faultAndRetry = Policy.WrapAsync(retryPolicy, faultPolicy);
IAsyncPolicy <HttpResponseMessage> latencyTimeoutAndRetry = Policy.WrapAsync(
retryPolicy, timeoutPolicy, latencyPolicy);
services.AddRefitClient <IAzureDevOpsApi>()
.ConfigureHttpClient((serviceProvider, client) =>
{
client.BaseAddress = new Uri(Configuration["AppSettings:AzureDevOpsApiAddress"]);
client.DefaultRequestHeaders.Add("Accept", "application/json");
})
.AddPolicyHandler(faultAndRetry);
//.AddPolicyHandler(latencyTimeoutAndRetry);
}
