public ActionResult <IEnumerable <AppointmentReadDTO> > GetAppointmentsForDoctor(int doctorId)
        {
            if (_doctorRepository.GetDoctorById(doctorId) == null)
            {
                return(NotFound());
            }

            var appointmentsFromDoctorFromRepo = _doctorRepository.GetAppointments(doctorId);

            return(Ok(_mapper.Map <IEnumerable <AppointmentReadDTO> >(appointmentsFromDoctorFromRepo)));
        }
        public ActionResult <DoctorReadDTO> GetDoctorById(int id)
        {
            var doctor = _repository.GetDoctorById(id);

            if (doctor != null)
            {
                return(Ok(_mapper.Map <DoctorReadDTO>(doctor)));
            }
            return(NotFound());
        }