How to enforce strict serialization of JSON in Play 2.x

Question

Play\'s JSON serialization is by default permissive when serializing from JSON into a case class. For example.

case class Stuff(name: String, value: Option[         


        

Answer 1

Inspired from Travis' comment to use LabelledGeneric I was able achieve compile time safe solution.

object toStringName extends Poly1 {
    implicit def keyToStrName[A] = at[Symbol with A](_.name)
}
case class Foo(bar: String, boo: Boolean)

val labl = LabelledGeneric[Foo]
val keys = Keys[labl.Repr].apply

now keys.map (toStringName).toList will give you

res0: List[String] = List(bar, boo)