public async Task <IActionResult> PutCategory(long id, [Bind("Name")] Category category)
        {
            // if (id != category.Id)
            // {
            //     return BadRequest();
            // }

            category.Id = id;

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

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

            return(NoContent());
        }
        public async Task <IActionResult> PutProduct(long id, Product product)
        {
            // if (id != product.Id)
            // {
            //     return BadRequest();
            // }
            product.Id = id;

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

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

            return(NoContent());
        }