[AcceptVerbs("POST")]
    [HttpPost]
    public string Post([FromBody]User user)
    {
        if(user.Username == "hello" && user.Password == "123")
        {
            var accessTokenResponse = GenerateLocalAccessTokenResponse(user.Username);

            return accessTokenResponse.ToString();
        }
        else
        {
            return "User invalid";
        }
    }

[Authorize]
    [HttpGet]
    // GET api/orders/5
    public string Get()
    {
        return "This is a secure resource";
    }