ZIO learning - using a counter to monitor logic behavior / published by https://github.com/dacr/code-examples-manager #924f9d93-3244-46f0-92b3-f0d6e2413251/88ab5588426332e7fce779fb6360913c67b8d636

zio-learning-28-operations-1.sc

// summary : ZIO learning - using a counter to monitor logic behavior
// keywords : scala, zio, learning, pure-functional, operations, counter, @testable
// publish : gist
// authors : zio
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : 924f9d93-3244-46f0-92b3-f0d6e2413251
// created-on : 2021-11-05T17:16:11Z
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

// ---------------------
//> using scala "3.4.2"
//> using dep "dev.zio::zio:2.0.13"
//> using dep "fr.janalyse::zio-worksheet:2.0.13.0"
// ---------------------
import zio.*, zio.worksheet.*
import zio.metrics.*

val monitoredLogic = for {
  chosenOddNumber <- (
    Random.nextLongBounded(10) @@ Metric.counter("attempts")
    ).repeatUntil(x => x % 2 == 0 && x > 0)
} yield chosenOddNumber

val result = monitoredLogic.unsafeRun
println(result)