public BillsModule(IBillsRepository repository) : base("/bills") { _repository = repository; Get["/summary"] = _ => { var billSummaries = _repository.GetBillSummaries(); return JsonConvert.SerializeObject(billSummaries); }; Get["/{id}"] = parameters => { var bill = _repository.GetBill(parameters.Id); return JsonConvert.SerializeObject(bill); }; }