Play2 post json string and return its value

gistfile1.scala

  case class TestObj(name: String, msg: String)

  def insertMulti() = Action {
    implicit req =>
      // parse posted json objs
      val json = req.body.asJson.getOrElse(JsNull)
      val objs = json.as[List[JsValue]].map {
        json => Json.reads[TestObj].reads(json).get
      }
      // return what we got as json string
      Ok(JsArray(objs map {
        obj => Json.writes[TestObj].writes(obj)
      }))
  }

  def insertSingle() = Action {
    implicit req =>
      // parse posted json obj
      val obj = Json.reads[TestObj].reads(req.body.asJson.getOrElse(JsNull))
      // return what we got as json string
      Ok(Json.writes[TestObj].writes(obj.getOrElse(null)))
  }