ResilientRefit.Core

Overview

ResilientRefit.Core is a library designed to enhance the resilience of Refit clients by integrating Polly policies. This library allows you to configure Refit clients with retry, circuit breaker, and timeout policies, ensuring that your HTTP requests are more robust and fault-tolerant.

Features

• Retry Policy: Automatically retries failed requests a specified number of times with a delay between each attempt.
• Circuit Breaker Policy: Monitors the number of consecutive failures and opens the circuit if the threshold is reached, preventing further requests for a specified duration.
• Timeout Policy: Enforces a maximum duration for each request, ensuring that long-running requests are terminated.

Installation

To install ResilientRefit.Core, add the following NuGet package to your project:

Configuration

appsettings.json

Configure your resiliency policies and Refit client settings in your appsettings.json file:

  "HttpBin": {
    "BaseUrl": "https://httpbin.org",
    "ResiliencyPolicies": {
            "RetryPolicy": {
        "Count": 3,
        "Delay": 2,
        "Jitter": 1000
      },
      "CircuitBreakerPolicy": {
        "Count": 5,
        "Duration": 5
      },
      "TimeoutPolicy": {
        "Duration": 10
      }
    }
  },

Example Usage

1. Define Your Refit Interface

Create an interface for your Refit client: Renders as:

public interface IMyRefitClient { [Get("/endpoint")] Task<ApiResponse> GetEndpointAsync(); }

API Reference

PollyPoliciesExtensions

ConfigureRefitClient<TClient>

Configures a Refit client with Polly policies.

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        var configuration = new ConfigurationBuilder()
            .AddJsonFile("appsettings.json")
            .Build();

     +    services.ConfigureRefitClient<IMyRefitClient>(configuration, "MyRefitClient");
    }
}