Cats WriterMonad wrapping a Future

WriterMonadFuture.scala

def getCurrentTemperatureW(): WriterT[Future, List[String], Double] = {
  WriterT.putT(Future.successful(10.0))(List("Thermometer isn't broken yet"))
}

def getTomorrowsTempFromPredictionAPIW(curr: Double): WriterT[Future, List[String], Double] = {
  WriterT.putT(Future.successful(20.0))(List("Yay, the Prediction API works too"))
}

def publishItInOurWebsiteW(pred: Double): WriterT[Future, List[String], Double] = {
  WriterT.putT(Future.successful(20.0))(List("Published to our website"))
}

val publishedWriter =
  for {
    curr <- getCurrentTemperatureW()
    pred <- getTomorrowsTempFromPredictionAPIW(curr)
    pub <- publishItInOurWebsiteW(pred)
  } yield pub


val futureRun = publishedWriter.run

val (logs, value) = Await.result(futureRun, 2 seconds)

println(logs.mkString("\n"))
println(s"\nValue is $value")