public async Task <IActionResult> PutMustDoItem(long id, MustDoItem mustDoItem)
        {
            //validate price
            if (mustDoItem.price < 0)
            {
                return(BadRequest("Price can't be negative"));
            }
            if (id != mustDoItem.id)
            {
                return(BadRequest());
            }

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

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

            return(Ok(mustDoItem));
        }
        public async Task <ActionResult <MustDoItem> > PostMustDoItem(MustDoItem mustDoItem)
        {
            //validate price
            if (mustDoItem.price < 0)
            {
                return(BadRequest("Price can't be negative"));
            }
            _context.MustDoItems.Add(mustDoItem);
            await _context.SaveChangesAsync();

            return(CreatedAtAction("GetMustDoItem", new { id = mustDoItem.id }, mustDoItem));
        }