问REST API可以在Web API服务中使用吗？

EN

  using (var client = new HttpClient())
     {
                        string query;
                        using (var content = new FormUrlEncodedContent(new Dictionary<string, string>()
                        {
                            {"username", username},
                            {"password", password}
                        }))
                        {
                            query = content.ReadAsStringAsync().Result;
                        }

                        var model = new{
                            username = txtUsername.Text,
                            password = txtPassword.Text
                        };
                        var json = JsonConvert.SerializeObject(model);
                        var user = new StringContent(json, Encoding.UTF8, "application/json");

                        using (var response = await client.PostAsync(@"http://localhost/dataagent/api/user/authenticate", user))
                        {
                            if (response.IsSuccessStatusCode)
                            {
                                var result = await response.Content.ReadAsStringAsync();
                                // handle result here

                            }
                        }
}