gistfile1.scala

  private[this] def badParams(msg: String) = BadRequest(
    Json.toJson(Map("error" -> ("Be sure to have these params defined: "+msg)))
  )

  def create = Action(parse.json) { request =>
    (for (
      modeStr <- (request.body \ "mode").asOpt[String];
      mode <- Graph.ConnectionsMode.withNameOpt(modeStr);
      time <-  (request.body \ "travel_time").asOpt[Int];
      lat <- (request.body \ "origin" \ "lat").asOpt[Double];
      lng <- (request.body \ "origin" \ "lng").asOpt[Double];
      smooth <- (request.body \ "smooth").asOpt[Boolean]
    ) yield (time, lat, lng, mode, smooth)) match {
      case None =>
        badParams(
          "travel_time: Int, origin[lat]: Double, origin[lng]: Double, " +
          "smooth: Boolean, mode: one of " +
          Graph.ConnectionsMode.values.mkString("/")
        )
      case Some((time, lat, lng, mode, smooth)) =>
        val shape = TimeMap.createShape(
          Node.DegreeCoords(lat, lng), time, mode, smooth
        )
        Ok(Json.toJson(shape))
    }
  }