JSON serialization of Scala enums using Jackson - scala

Question

Following this article https://github.com/FasterXML/jackson-module-scala/wiki/Enumerations
The enumeration declaration is as
object UserStatus extends Enumeration {
type UserStatus = Value
val Active, Paused = Value
}
class UserStatusType extends TypeReference[UserStatus.type]
case class UserStatusHolder(#JsonScalaEnumeration(classOf[UserStatusType]) enum: UserStatus.UserStatus)
The DTO is declared as
class UserInfo(val emailAddress: String, val userStatus:UserStatusHolder) {
}
and the serialization code is
val mapper = new ObjectMapper()
mapper.registerModule(DefaultScalaModule)
def serialize(value: Any): String = {
import java.io.StringWriter
val writer = new StringWriter()
mapper.writeValue(writer, value)
writer.toString
}
The resulting JSON serialization is
{
"emailAddress":"user1#test.com",
"userStatus":{"enum":"Active"}
}
Is it possible to get it the following form ?
{
"emailAddress":"user1#test.com",
"userStatus":"Active"
}

Answer 1

Have you tried:
case class UserInfo(
emailAddress: String,
#JsonScalaEnumeration(classOf[UserStatusType]) userStatus: UserStatus.UserStatus
)
The jackson wiki's example is a little misleading. You don't need the holder class. Its just an example of a thing that has that element. The thing you need is the annotation