chimney simple usage example / published by https://github.com/dacr/code-examples-manager #ab486c41-ac65-48f0-8f19-097e16a27d83/5fba5057ba6fb142977b37c1e03d31cb36a79e3f

chimney-basic-2.sc

// summary : chimney simple usage example
// keywords : scala, chimney, @testable
// publish : gist
// authors : chimney
// license : Apache2
// id : ab486c41-ac65-48f0-8f19-097e16a27d83
// created-on : 2023-06-23T16:20:02+02:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

//> using scala "3.4.2"
//> using dep "io.scalaland::chimney:0.8.0-M1"
//> using option "-deprecation"

import io.scalaland.chimney.dsl._
import java.time.ZonedDateTime
import scala.util.Random

case class MakeCoffee(id: Int, kind: String, addict: String)
case class CoffeeMade(id: Int, kind: String, forAddict: String, at: ZonedDateTime)

val command = MakeCoffee(
  id = Random.nextInt(),
  kind = "Espresso",
  addict = "Piotr"
)

val eventLegacyWay = CoffeeMade(
  id = command.id,
  kind = command.kind,
  forAddict = command.addict,
  at = ZonedDateTime.now
)

println(eventLegacyWay)

val eventWithChimney = command
  .into[CoffeeMade]
  .withFieldComputed(_.at, _ => ZonedDateTime.now)
  .withFieldRenamed(_.addict, _.forAddict)
  .transform

println(eventWithChimney)