public async Task <ActionResult <credit_rate> > Postcredit_rate(credit_rate credit_rate)
        {
            _context.credit_rate.Add(credit_rate);
            await _context.SaveChangesAsync();

            return(CreatedAtAction("Getcredit_rate", new { id = credit_rate.id_credit_rate }, credit_rate));
        }
        public async Task <IActionResult> Putcredit_rate(int id, credit_rate credit_rate)
        {
            if (id != credit_rate.id_credit_rate)
            {
                return(BadRequest());
            }

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

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

            return(NoContent());
        }