谷歌日历API第3版：使用的accessToken检索CalendarList(Google Cal

我试图访问谷歌API V3 Calendarlist但我不断收到四百零四分之四百零一反应，即使我有一个有效的accessToken的用户。
（我完成了对Web服务器应用程序的OAuth2协议，并获得https://www.googleapis.com/auth/calendar许可）

它已经很难找到良好的文档对于这一点，谷歌的网站本身是不是非常有帮助，并搜索都充满了旧v2的信息，或使用的SDK。通常我可以做翻译蟒蛇答复C＃，但在这种情况下，即使没有帮助我。

所以我拉我的头发，但我可能忘了什么东西很简单这里就像一个缺少参数或诸如此类，所以它如果有人将采取快速浏览一下这些代码，并告诉我，我做错了什么不胜感激。

var applicationKey = moduleModel.Application.Key;
var userID = moduleModel.User.UserID;
var accessToken = moduleModel.User.AccessToken.Token;

// It doesn't seem to make any difference whether I use the querystring
// parameter or the request header to specify the access_token
var sendAccessTokenAsHeader = 
    !(Request.QueryString["SendAccessTokenAsHeader"] == "0");

// I tried navigating to a specific user but it results in a 404 Not Found
var requestSpecificUserID = 
    Request.QueryString["RequestSpecificUserID"] == "1";

// Including or omitting my API_KEY doesn't seem to make any difference
var sendApplicationKey = 
    !(Request.QueryString["SendApplicationKey"] == "0");

var urlBuilder = new System.Text.StringBuilder();

urlBuilder.Append("https://");
urlBuilder.Append("www.googleapis.com");

if (requestSpecificUserID)
{
    urlBuilder.Append
        (string.Format("/calendar/v3/users/{0}/calendarList", userID));
}
else
{
    urlBuilder.Append
        ("/calendar/v3/users/me/calendarList");
}

var parameterJoiner = "?";

if (sendApplicationKey)
{
    urlBuilder.Append
    (
        string.Format
        (
            "{0}{1}={2}",
            parameterJoiner,
            "key",
            HttpUtility.UrlEncode(applicationKey)
        )
    );
    parameterJoiner = "&";
}

if (!sendAccessTokenAsHeader)
{
    urlBuilder.Append
    (
        string.Format
        (
            "{0}{1}={2}",
            parameterJoiner,
            "access_token",
            HttpUtility.UrlEncode(accessToken)
        )
    );
    parameterJoiner = "&";
}

var httpWebRequest = HttpWebRequest.Create(urlBuilder.ToString()) 
    as HttpWebRequest;
httpWebRequest.CookieContainer = new CookieContainer();

if (sendAccessTokenAsHeader)
{
    httpWebRequest.Headers["Authorization"] = string.Format
    (
        "Bearer {0}",
        accessToken
    );
}

// GetSafeResponse is just an extension method to catch the WebException 
// when the HttpStatusCode != OK

var response = httpWebRequest.GetSafeResponse(); 

// returns 401 (requestSpecificUserID = false)
// or 404 (requestSpecificUserID = true)

var responseText = response.GetResponseText();

return responseText;

先感谢您！

我通过阅读找到我的回答这个问题。

显然，即使谷歌文档并没有提到它在所有的参数minAccessRole是必需的。

工作示例：

var accessToken = moduleModel.User.AccessToken.Token;

var urlBuilder = new System.Text.StringBuilder();

urlBuilder.Append("https://");
urlBuilder.Append("www.googleapis.com");
urlBuilder.Append("/calendar/v3/users/me/calendarList");
urlBuilder.Append("?minAccessRole=writer");

var httpWebRequest = HttpWebRequest.Create(urlBuilder.ToString()) 
    as HttpWebRequest;

httpWebRequest.CookieContainer = new CookieContainer();
httpWebRequest.Headers["Authorization"] = 
    string.Format("Bearer {0}", accessToken);

var response = httpWebRequest.GetSafeResponse();

var responseText = response.GetResponseText();

return responseText;