PollyPolicy.cs

using Polly;
using Polly.Extensions.Http;
using Serilog;
using System;
using System.Net.Http;

namespace Common.Policy
{
    public class PollyPolicy
    {
        public static IAsyncPolicy<HttpResponseMessage> GetRetryPolicy()
        {
            return HttpPolicyExtensions
                .HandleTransientHttpError()
                .WaitAndRetryAsync(
                    retryCount: 5,
                    sleepDurationProvider: retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)),
                    onRetry: (exception, retryCount, context) =>
                    {
                        Log.Error($"Retry {retryCount} of {context.PolicyKey} at {context.OperationKey}, due to: {exception}.");
                    });
        }

        public static IAsyncPolicy<HttpResponseMessage> GetCircuitBreakerPolicy()
        {
            return HttpPolicyExtensions
                .HandleTransientHttpError()
                .CircuitBreakerAsync(
                    handledEventsAllowedBeforeBreaking: 5,
                    durationOfBreak: TimeSpan.FromSeconds(30)
                );
        }
    }
}