public async Task <IActionResult> PutAppointment(int id, Appointment appointment)
        {
            if (id != appointment.ApptId)
            {
                return(BadRequest());
            }

            _context.Entry(appointment).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!AppointmentExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(NoContent());
        }
        public async Task <IActionResult> PutDeadline(int id, Deadline deadline)
        {
            if (id != deadline.DeadlineId)
            {
                return(BadRequest());
            }

            _context.Entry(deadline).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!DeadlineExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(NoContent());
        }