public async Task Put(int Id, Product model)
 {
     var product = Db.Product.Find(Id);
     product.Brand = model.Brand;
     product.Price = model.Price;
     product.Name = model.Name;
     product.Description = model.Description;
     await Db.SaveChangesAsync();
 }
        public async Task Post(Product model)
        {
            var product = new Product
            {
                Brand = model.Brand,
                Price = model.Price,
                Name = model.Name,
                Description = model.Description,

            };
            Db.Product.Add(product);
            await Db.SaveChangesAsync();
        }