Simple HttpService using spray with a marshaller

simplesprayhttpservice.scala

trait Entry extends HttpService {
  val entry = path("") {
    get {
      complete {
        Link("order", "http://localhost:8080/order", "*/*,plain/text,application/json")
      }
    }
  }
}

implicit val LinkMarshaller = Marshaller.of[Link](`text/plain`, `application/json`) {
  (value, contentType, ctx) => contentType match {
    case x if x.value.startsWith("application/json")   => {
      ctx.marshalTo(HttpBody(contentType, write(value)))
    }
    case _ => {
      ctx.marshalTo(HttpBody(contentType, value.toString))
    }
  }
}