OpenWeather API requires API Key

[yoshprogrammer]

Hello,

First off, great book.

Second, OpenWeather's API changed so you need an API key now. Unfortunately, at least from my testing, the API does not return the same results as displayed in Chapter 6 making those sections/exercises difficult to understand what is supposed to be happening.

In chapter 7 it appears to work if I manually call cityTempe, but otherwise the code itself as written doesn't appear to execute. If I call cityTemp("Scottsdale") and hit save multiple times within the Eclipse IDE or command line, it will show up eventually every fifth or sixth time.

def cityTemp(name: String): Double = {
        val url = "http://api.openweathermap.org/data/2.5/weather?appid=[APIKEY]"
        val cityUrl = s"$url&q=$name"
        val json = io.Source.fromURL(cityUrl).mkString.trim
        val pattern = """.*"temp":([\d.]+).*""".r
        val pattern(temp) = json
        temp.toDouble
  }                                               //> cityTemp: (name: String)Double

    val cityTemps = Future sequence Seq(
            Future(cityTemp("Fresno")), Future(cityTemp("Tempe"))
    )                                         //> cityTemps  : scala.concurrent.Future[Seq[Double]] = List()

    cityTemps onSuccess {
        case Seq(x,y) if x > y => println(s"Fresno is warmer: $x K")
        case Seq(x,y) if x < y => println(s"Tempe is warmer: $y K")
    }

Thoughts?