Future.onSuccess and Future.onFailure

post.scala

future.onFailure {
  case e: Exception =>
    Logger.warn("SMS: Error: " + e.getMessage)
  case _ =>
    Logger.warn("SMS: Unknown error")
}

future.onSuccess {
  case response: Response =>
    response.status match {
      case 200 =>
      case _ =>
        Logger.warn("Failed to send SMS")
    }
}