public async Task <IActionResult> PutgetBill([FromRoute] int id, [FromBody] getBill getBill)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != getBill.id_getBill)
            {
                return(BadRequest());
            }

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

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

            return(NoContent());
        }
        public async Task <IActionResult> PostgetBill([FromBody] getBill getBill)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            _context.getBill.Add(getBill);
            await _context.SaveChangesAsync();

            return(CreatedAtAction("GetgetBill", new { id = getBill.id_getBill }, getBill));
        }