Introduction

A library that simplifies usage and configuration of Polly policies.

Getting Started

1. Install FlutterEffect.PollyFactory nuget package
2. Create PollyConfig section in your config file
3. In Startup.cs call services.AddSingleton(PollyFactory.LoadRegistryFromConfig(Configuration, "PollyConfig"));
4. Import PolicyRegistry instance in your service
5. Get your Policy by name: _retrier = registry.Get<RetryPolicy>("MyRetrier");

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If you need a RetryPolicy with OnRetry handler, call PollyFabric.CreateRetrierWithHandler(configSection, onRetry)

• Retriers are thread-safe, so it's ok to use the same instance across app.
• Circuit breakers have own state, so use separate CB in each thread.
• To create a new instance of a Policy from config, use PollyFabric.CreatePolicy(config, configSection, PolicyKey)

Config section reference

  "PollyConfig": {
    "MyRetrier": { //name of your policy
      "Type": "SimpleRetrier", //Retrier type
      "Waits": [ 10, 60, 600, 1800 ], //array of wait times in ms
      "Retries": 3 //tries count (for simple retrier and CB)
      "Timeout": 1000 //optional timeout to execute a task (note: Policy type would be PolicyWrap),
    }
  }

Available policies

• (Async)Retrier - retries forever with the "Waits" delays.
• Simple(Async)Retrier - retries "Retries" times with the "Waits" delays.
• (Async)CircuitBreaker - after "Retries" times fails for "Waits[0]" seconds.