Funcional AuthZ

AuthZ test

case class AuthZ[A](act: Action[A])(implicit findGuard: RequestHeader => Guard) extends Action[A] {
  
  def apply(req: Request): Result = {
    val guard = findGuard(req)
    if (guard.allow(guard.subject(req))) act(req)
    else Results.Unauthorized
  }

  override
  def parser = act.parser
}

trait Guard {
  def allow(subj: => Promise[Subject]): Boolean
  def subject(req: Request): Promise[Subject]
}