in app/lib/Config.scala [32:38]
def reads(json: JsValue): JsResult[T] = json match {
case JsString(s) => parse(s) match {
case Some(d) => JsSuccess(d)
case None => JsError(Seq(JsPath() -> Seq(JsonValidationError("Error parsing string"))))
}
case _ => JsError(Seq(JsPath() -> Seq(JsonValidationError("Expected string"))))
}