build.sbt

scalaVersion := "2.11.2"

libraryDependencies ++= Seq("com.propensive" %% "rapture-json-jackson" % "1.0.2")

Rapture.scala

import rapture.json._
import rapture.json.jsonBackends.jackson._

case class Fruit(name: String, variants: List[String])

object Rapture extends App {
  val a = json"""[
  {
    "name": "apple",
    "variants": ["cox", "braeburn"]
  },
  {
    "name": "orange",
    "variants": ["valencia", "hamlin"]
  }
  ]"""

  println(a(1).name)

  println(a(0).variants.as[List[String]] map (_.length))

  val b =  a.as[List[Fruit]]

  println(b)

  val c = Json(b.head)

  assert(c == a(0))
}

lucmac:rapture-json-demo luc$ sbt run
[info] Loading global plugins from /Users/luc/.sbt/0.13/plugins
[info] Set current project to rapture-json-demo (in build file:/Users/luc/tmp/rapture-json-demo/)
[info] Running Rapture 
"orange"
List(3, 8)
List(Fruit(apple,List(cox, braeburn)), Fruit(orange,List(valencia, hamlin)))
[success] Total time: 1 s, completed Oct 17, 2014 4:14:41 PM

Use version 1.0.3 now -- I found a bug with case class extraction in 1.0.2 a couple of days ago!