如何在.Net控制台应用程序中获取承载令牌？

Question

我正在按照本教程讲解如何授权和从Web-api服务器获取承载令牌。通过fiddler在那里执行的任务非常简单，但是，当我尝试从控制台应用程序执行相同操作时，请求失败，并显示400 Bad Request Error。这是向服务器发出请求的代码：

var request = WebRequest.Create("http://localhost:12698/token") as HttpWebRequest;
    request.Method = "POST";
    request.ContentType = "application/x-www-form-urlencoded";
    request.CookieContainer = new CookieContainer();         
    var authCredentials = "userName=" + user + "&password=" + password;
    byte[] bytes = System.Text.Encoding.UTF8.GetBytes(authCredentials);
    request.ContentLength = bytes.Length;
    using (var requestStream = request.GetRequestStream()){
        requestStream.Write(bytes, 0, bytes.Length);
    }

    using (var response = request.GetResponse() as HttpWebResponse){
        authCookie = response.Cookies["access_token"];
    }

有人可以帮助我确定我在做什么错吗？还是我应该使用其他方法来获取身份验证令牌？

Answer 1

FormUrlEncodedContent在System.Net.Http中

        static string GetToken(string userName, string password)
        {
            var pairs = new List<KeyValuePair<string, string>>
                        {
                            new KeyValuePair<string, string>( "grant_type", "password" ), 
                            new KeyValuePair<string, string>( "userName", userName ), 
                            new KeyValuePair<string, string> ( "password", password )
                        };
            var content = new FormUrlEncodedContent(pairs);
            using (var client = new HttpClient())
            {
                var response = 
                    client.PostAsync("https://localhost:12698/Token", content).Result;
                return response.Content.ReadAsStringAsync().Result;
            }
        }