public async Task <ActionResult <TransactionI> > PostTransactionI(TransactionI transactionI)
        {
            _context.transactionsI.Add(transactionI);
            await _context.SaveChangesAsync();

            return(CreatedAtAction("GetTransactionI", new { id = transactionI.Id }, transactionI));
        }
        public async Task <IActionResult> PutTransactionI(int id, TransactionI transactionI)
        {
            if (id != transactionI.Id)
            {
                return(BadRequest());
            }

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

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

            return(NoContent());
        }