public async Task <ActionResult <IEnumerable <SeatDomainModel> > > GetAsync() { IEnumerable <SeatDomainModel> seatDomainModels; seatDomainModels = await _seatService.GetAllAsync(); if (seatDomainModels == null) { seatDomainModels = new List <SeatDomainModel>(); } return(Ok(seatDomainModels)); }