Play Framework: How to serialize/deserialize an enumeration to/from JSON

Question

Given the following enumeration...

object MyEnum extends Enumeration {

  type MyEnum = Value

  val Val1 = Value(\"val1\")
  val Val2 = Value(\"val2\")
  va         


        

Answer 1

Play 2.7

Since play-json 2.7 there is Json.formatEnum method. Added in scope of #140

Example:

object MyEnum extends Enumeration {
  type MyEnum = Value

  val Val1 = Value("val1")
  val Val2 = Value("val2")
  val ValN = Value("valN")

  implicit val format = Json.formatEnum(this)
}