case class Student(name: String, age: Int, subjects: List[String]) import spray.json.DefaultJsonProtocol._ implicit val studentFormat = jsonFormat3(Student) import spray.json._ val student = Student("John Doe", 20, List("Math", "Science")) val jsonString = student.toJson.toString val parsedJson = jsonString.parseJson val studentObject = parsedJson.convertTo[Student]