robhinds

val route =
  pathPrefix(“user” / JavaUuid) { userId =>
    pathSingleSlash {
      get {
        complete {
          //fetch user details
        }
      }
    }
  }

robhinds

import org.scalatest.FunSpec
import shapeless.{HList, HNil, _}

import scala.util.Random

trait Generator[A] {
  def generate: A
}

object Generator {

robhinds

implicit def cnilGenerator: Generator[CNil] =
  new Generator[CNil] {
    override def generate: CNil = throw new RuntimeException("Invalid candidate configuration")
  }

implicit def cconsGenerator[H, T <: Coproduct] =
  new Generator[H :+: T] {
    override def generate = throw new RuntimeException("Invalid candidate configuration")
  }

robhinds

import Generator._
case class Sample(a: Int, b: Boolean, c: Double, d: String)
generate[Sample]

robhinds

implicit def hconsGenerator[H, T <: HList](implicit headGen: Generator[H], tailGen: Generator[T]) =
  new Generator[H :: T] {
    override def generate = headGen.generate :: tailGen.generate
  }

robhinds

implicit def hnilGenerator = new Generator[HNil] {
  override def generate = HNil
}

robhinds

implicit def genericToGenerator[T, L <: HList](implicit generic: Generic.Aux[T, L], lGen: Generator[L]): Generator[T] =
  new Generator[T] {
    override def generate = generic.from(lGen.generate)
  }

robhinds

implicit def intGenerator = new Generator[Int] {
  override def generate = Random.nextInt
}

implicit def doubleGenerator = new Generator[Double] {
  override def generate = Random.nextDouble
}

implicit def StringGenerator = new Generator[String] {
  val loremWords = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.".split(" ")

robhinds

object Generator {
  def generate[A](implicit gen: Generator[A]) = gen.generate
}

robhinds

trait Generator[A] {
  def generate: A
}