zio-layers-test.scala

import zio._
import zio.console._
import zio.logging._
import zio.ZEnv

object Main extends App {
  type Env = Logging with Console
  
  val program: ZIO[Env, Nothing, Unit] =  {
    putStrLn("Hello ZIO! from Console") *> 
    log("Hello from ZIO from logger")
  }

  val programLive = {
    val consoleLogging = Logging.console((_, logEntry) =>
      logEntry
    )
    val consoleLoggingLayer = ZLayer.fromEffect(consoleLogging)
    program.provideCustomLayer(consoleLoggingLayer)
  }

  override def run(args: List[String]): ZIO[ZEnv, Nothing, Int] = {
    programLive.as(0)
  }
}