I am using spray json serialization for my following case class
case class ActivationMessage(override val transid: TransactionId,
action: FullyQualifiedEntityName,
revision: DocRevision,
user: Identity,
activationId: ActivationId,
activationNamespace: EntityPath,
content: Option[JsObject],
cause: Option[ActivationId] = None,
traceMetadata: Option[SpanMetadata] = None
) extends Message {
def meta = JsObject("meta" -> {
cause map {
c => JsObject(c.toJsObject.fields ++ activationId.toJsObject.fields)
} getOrElse {
activationId.toJsObject
}
})
override def serialize = ActivationMessage.serdes.write(this).compactPrint
override def toString = {
val value = (content getOrElse JsObject()).compactPrint
s"$action?message=$value"
}
def causedBySequence: Boolean = cause.isDefined
}
object ActivationMessage extends DefaultJsonProtocol {
def parse(msg: String) = Try(serdes.read(msg.parseJson))
private implicit val fqnSerdes = FullyQualifiedEntityName.serdes
implicit val serdes = jsonFormat9(ActivationMessage.apply)
}
I get compilation error saying - could not find implicit value for evidence parameter of type ActivationMessage.JF[Option[com.github.levkhomich.akka.tracing.SpanMetadata]]
If I remove last argument from constructor and use jsonFormat8 every thing compiles fine. How can I add this extra argument without any compile issues?