/// <summary>
        /// Handle Authenticate Async
        /// </summary>
        /// <returns>Task of AuthenticateResult</returns>
        protected override async Task <AuthenticateResult> HandleAuthenticateAsync()
        {
            if (!Request.Headers.ContainsKey("Authorization"))
            {
                return(AuthenticateResult.Fail("Authorization Header not found"));
            }
            Register register;

            try
            {
                var      authHeader      = AuthenticationHeaderValue.Parse(Request.Headers["Authorization"]);
                byte[]   credentialBytes = Convert.FromBase64String(authHeader.Parameter);
                string[] credentials     = Encoding.UTF8.GetString(credentialBytes).Split(':');

                string login    = credentials[0];
                string password = credentials[1];

                register = await registerService.Auth(login, password);
            }
            catch (Exception)
            {
                return(AuthenticateResult.Fail("Authorization Header isn't valid"));
            }

            if (register == null)
            {
                return(AuthenticateResult.Fail("Username or Password isn't valid"));
            }


            var claims = new Claim[] {
                new Claim(ClaimTypes.NameIdentifier, register.Login),
                new Claim(ClaimTypes.Name, register.Password),
            };

            var identity  = new ClaimsIdentity(claims, Scheme.Name);
            var principal = new ClaimsPrincipal(identity);
            var ticket    = new AuthenticationTicket(principal, Scheme.Name);

            return(AuthenticateResult.Success(ticket));
        }