// Seeds data into Mock LandmarkingContext db
        public static void Seed(this LandmarkingContext dbContext)
        {
            // retreive JSON user data
            var userData = System.IO.File.ReadAllText("Data/userData.json");
            var users    = JsonConvert.DeserializeObject <List <User> >(userData);

            // Add Users for DbContext instance
            foreach (var user in users)
            {
                byte[] passwordHash, passwordSalt;
                CreatePasswordHash("password", out passwordHash, out passwordSalt);

                user.PasswordSalt = passwordSalt;
                user.PasswordHash = passwordHash;
                user.Username     = user.Username.ToLower();

                dbContext.Add(user);
            }

            dbContext.SaveChanges();
        }
 //Add new entity to database
 public void Add <T>(T entity) where T : class
 {
     _context.Add(entity);
 }