public string Register(UserRegisterationForm registerSerial)
        {
            var db           = new DBConnector();
            var queryBuilder = new StringBuilder("SELECT registerSerial FROM users WHERE username = @user");
            var command      = new MySqlCommand(queryBuilder.ToString());

            command.Parameters.AddWithValue("@user", registerSerial.username);
            var    result = db.ExecuteQuery(command);
            string serial = "";

            while (result.Read())
            {
                serial = result.GetString(0);
            }
            if (serial == "")
            {
                db.CloseConnection();
            }
            return("fault");

            if (serial == registerSerial.registerSerial)
            {
                queryBuilder = new StringBuilder("UPDATE users SET registered=TRUE WHERE username = @user");
                command      = new MySqlCommand(queryBuilder.ToString());
                command.Parameters.AddWithValue("@user", registerSerial.username);
                var update = db.ExecuteNonQuery(command);
                db.CloseConnection();
                if (update > 0)
                {
                    return("success");
                }
                else
                {
                    return("fault");
                }
            }
            else
            {
                db.CloseConnection();
            }
            return("failed");
        }
        public string Post([FromBody] UserRegisterationForm value)
        {
            DBRequest request = new DBRequest();

            return(request.Register(value));
        }