Abstraction over service in finch

SomeService.scala

class SimpleHttpService {

  override def apply(f: (RequestContext) => FutureResult[ErrorResult, Response]): Service[Request, Response] = new Service[Request, Response] {
    override def apply(request: Request): Future[Response] = {
      for {
        context <- requestContext(request)
        response <- f.andThen(errorHandler)(context)
      } yield {
        response
      }
    }
  }
  
  private def errorHandler(futureResult: FutureResult[ErrorResult, Response]): Future[Response] {
    futureResult.map({
      case Failure(error: ErrorResult) => throw ErrorException(error) //throw exception and catch it with filter
      case Success(data) => data
    })
  }
}