json

Type Members

1. trait DerivedFormats extends AnyRef

   

   Mixin that enables automatic derivation of JSON formats for any product (case classes) or coproduct (sealed traits) types.

2. final class gadt extends Annotation with StaticAnnotation

   

   An annotation that designates that a sealed trait is a generalized algebraic datatype (GADT), and that a type field containing the serialized childrens' types should be added to the final JSON objects.

   An annotation that designates that a sealed trait is a generalized algebraic datatype (GADT), and that a type field containing the serialized childrens' types should be added to the final JSON objects.

   Note that by default all sealed traits are treated as GADTs, with a type field called type. This annotation enables overriding the name of that field and is really only useful if a child itself has a field called type that would result in a conflict.

   Example:

   // the JSON field "kind" will contain the actual type of the serialized child
   @gadt("kind") sealed abstract class Keyword(`type`: String)
   case class If(`type`: String) extends Keyword(`type`)