def pricesFromJson()

in app/model/AWSCost.scala [78:108]
30 lines of code
2 McCabe index (conditional complexity)

    def pricesFromJson(url: String) = wsClient.url(url).withRequestTimeout(2.seconds).get map { response =>
      logger.info("Fetched cost data")
      implicit object BigDecimalReads extends Reads[BigDecimal]{
        def reads(json: JsValue) = JsSuccess(Try { BigDecimal(json.as[String]) } getOrElse (BigDecimal(0)) )
      }
      implicit object RegionPricesReads extends Reads[RegionPrices] {
        def reads(json: JsValue) = {
          val JsArray(typeGroups) = json
          val typeToCost = for {
            group <- typeGroups
            JsArray(size) = (group \ "sizes").get
            s <- size
          } yield {
            val JsArray(c) = (s \ "valueColumns").get
            (s \ "size").as[String] -> (c.head \ "prices" \ "USD").as[BigDecimal]
          }

          JsSuccess(RegionPrices(typeToCost.toMap))
        }
      }
      implicit object OnDemandPricesReads extends Reads[OnDemandPrices] {
        def reads(json: JsValue) = {
          val JsArray(regionsJs) = (json \ "config" \ "regions").get
          val regions = regionsJs.map { r =>
            (r \ "region").as[String] -> (r \ "instanceTypes").as[RegionPrices]
          }
          JsSuccess(OnDemandPrices(regions.toMap))
        }
      }
      Json.parse(response.body.dropWhile(_ != '{').takeWhile(_ != ')')).as[OnDemandPrices]
    }