Rezilience
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rezilience is a ZIO-native collection of policies for making asynchronous systems more resilient to failures.
It is inspired by Polly, Resilience4J and Akka.
It consists of these policies:
CircuitBreakerBulkheadRateLimiterRetryTimeout
Features / Design goals
- Type-safety: all errors that can result from any of the
reziliencepolicies are encoded in the method signatures, so no unexpected RuntimeExceptions. - Support for your own error types (the
EinZIO[R, E, A]) instead of requiring your effects to haveExceptionas error type - Lightweight:
rezilienceuses only ZIO fibers and will not create threads or block - Switchable at runtime with two transition modes
- Resource-safe: built on ZIO's
ZManaged, any allocated resources are cleaned up safely after use. - Interrupt safe: interruptions of effects wrapped by
reziliencepolicies are handled properly. - Thread-safe: all policies are safe under concurrent use.
- ZIO integration: some policies take for example ZIO
Schedules andreziliencetries to help type inference using variance annotations - Metrics: all policies (will) provide usage metrics for monitoring purposes
- Composable: policies can be composed into one overall policy
- Discoverable: no syntax extensions or implicit conversions, just plain scala
Documentation
Further questions? Look for the #rezilience channel on the ZIO Discord: https://discord.gg/2ccFBr4
Installation
Add to your build.sbt:
libraryDependencies += "nl.vroste" %% "rezilience" % "<version>"
Used by
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