libraryDependencies += "org.json4s" %% "json4s-native" % "3.6.10" scala import org.json4s._ import org.json4s.native.JsonMethods._ case class Person(name: String, age: Int) scala implicit val formats: DefaultFormats.type = DefaultFormats val jsonString: String = compact(render(Extraction.decompose(person))) scala println(jsonString) scala scala implicit val formats: DefaultFormats.type = DefaultFormats val person: Person = parse(jsonString).extract[Person] scala println(person)