ShoppingContext.cs

    public class ShoppingContext : DbContext
    {
        public DbSet<Product> Product { get; set; }

        public DbSet<ShoppingCart> ShoppingCart { get; set; }
        
        public DbSet<Account> Account { get; set; }

        public DbSet<CartItem> CartItem { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseSqlServer(@"Server=.\SQLEXPRESS;Database=Shopping;Trusted_Connection=True;");
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            ...
        }
    }