Circe Enum Example

a.scala

import $ivy.`com.beachape::enumeratum-circe:1.5.17`

import enumeratum._

sealed trait Color extends EnumEntry; case object Color extends Enum[Color] with CirceEnum[Color] {

  case object Red  extends Color
  case object Green extends Color
  case object Blue  extends Color

  val values = findValues

}

@ val x: Color = Color.Red 
xx: Color = Red

@ x.asJson 
res10: Json = JString("Red")