public IEnumerable <spSearch_Result> Search([FromBody] string letter)
        {
            AddUserService us    = new AddUserService();
            var            state = us.Search(letter);

            return(state);
        }
        public IEnumerable <spSearch_Result> Search([FromBody] Test test)
        {
            string hash  = test.HashCode;
            string input = Hashhelper.GetProperty(test);

            if (Hashhelper.VerifyMd5Hash(input, hash))
            {
                AddUserService us    = new AddUserService();
                var            state = us.Search(test);
                log.DebugFormat("WebApi got letter {0}.", test.Letter);
                return(state);
            }
            else
            {
                return(null);
            }
        }