Flurl PostUrlEncoded 执行 GET 而不是 POST

Question

我一定是遗漏了一些非常明显的东西，但我说不出是什么。我有一个 DoLoginAsync 像这样：

private async Task DoLoginAsync(bool force = false)
        {
            try
            {
                if (client.Cookies.ContainsKey("user_credentials") && !force)
                {
                    return;
                }
                var html = client.Request("login").GetStringAsync().Result;
                var doc = new HtmlDocument();
                doc.LoadHtml(html);
                var csrf_token = doc.DocumentNode.SelectNodes("//meta[@name='csrf-token']").First().GetAttributeValue("content", string.Empty);
                var values = new Dictionary<string, string>
                {
                    { "user_session[email]", user },
                    { "user_session[password]", password },
                    { "authenticity_token", csrf_token }
                };
                var result = await client.Request("user_session").PostUrlEncodedAsync(values);
            }
            catch (Exception e)
            {
            }

当我运行在 catch 子句中带有断点的测试中使用此代码时，我得到一个异常

Call failed with status code 404 (Not Found): GET http://www.whatever.com/user_session

卧槽？我希望 PostUrlEncodedAsync 执行 POST，而不是 GET。有人知道为什么会发生这种情况吗？

Flurl 客户端实例化为client = new FlurlClient(BASE_URL).EnableCookies();

更新

尝试了以下测试，但由于相同的异常而失败

[TestMethod]
        public async Task TheTest()
        {
            var message = "";
            try
            {
                var client = new FlurlClient("http://www.slimmemeterportal.nl/").EnableCookies();
                var html = await client.Request("login").GetStringAsync();
                var doc = new HtmlDocument();
                doc.LoadHtml(html);
                var csrf_token = doc.DocumentNode.SelectNodes("//meta[@name='csrf-token']").First().GetAttributeValue("content", string.Empty);
                var values = new Dictionary<string, string>
                {
                    { "user_session[email]", "******" },
                    { "user_session[password]", "******" },
                    { "commit", "inloggen" }, // Not sure if this is actually needed, but it is in the website's request parameters.
                    { "authenticity_token", csrf_token }
                };
                var result = await client.Request("user_session").PostUrlEncodedAsync(values);
            }
            catch (FlurlHttpException ex)
            {
                message = ex.Message;
            }
            Assert.AreEqual("Call failed with status code 404 (Not Found): POST http://www.slimmemeterportal.nl/user_session", message);
        }

Answer 1

谜团解开了：在使用 Wireshark 进行一些调试后，网站返回 HTTP 状态代码 301。如前所述 here 默认操作是遵循响应位置中的 URI header 使用 GET，即使原始请求是 POST.

Flurl PostUrlEncoded 执行 GET 而不是 POST

Flurl PostUrlEncoded does GET instead of POST

c#

flurl