c# - 使用 Google Contacts Api 导入联系人 C#

Question

我正在使用Google Contacts Api。我不确定是否可以发送一个Auth Token作为参数。

string _token = _google.Token;
RequestSettings requestSettings = new RequestSettings("AppName",_token);
ContactsRequest contactsRequest = new ContactsRequest(requestSettings);

// Get the feed
Feed<Contact> feed = contactsRequest.GetContacts();

我得到401 Unauthorised了这个代码的响应，但是如果我将用户名和密码作为参数发送，我就能得到响应。

Answer 1

哎呀，对不起，我第一次没有完全正确。我在一个真正的应用程序中使用这个代码，我只是在我的代码中做一些不同的事情，因为我不断地刷新令牌。
无论如何，这是正确的逻辑：

        // get this information from Google's API Console after registering your app
        var parameters = new OAuth2Parameters
        {
            ClientId = @"",
            ClientSecret = @"",
            RedirectUri = @"",
            Scope = @"https://www.google.com/m8/feeds/",
        };

        // generate the authorization url
        string url = OAuthUtil.CreateOAuth2AuthorizationUrl(parameters);

        // now use the url to authorize the app in the browser and get the access code
        (...)

        // get this information from Google's API Console after registering your app
        parameters.AccessCode = @"<from previous step>";

        // get an access token
        OAuthUtil.GetAccessToken(parameters);

        // setup connection to contacts service
        var contacts = new ContactsRequest(new RequestSettings("<appname>", parameters));

        // get each contact
        foreach (var contact in contacts.GetContacts().Entries)
        {
            System.Diagnostics.Debug.WriteLine(contact.ContactEntry.Name.FullName);
        }

仅供参考，在您调用GetAccessToken()访问代码后，您的参数数据结构将包括AccessToken和RefreshToken字段。如果您存储这两个值，您可以在后续调用中将它们设置在参数结构中（允许您将来跳过请求授权），而不是GetAccessToken()简单地调用RefreshAccessToken(parameters)，您将始终可以访问联系人。说得通？在这里，看看：

        // get this information from Google's API Console after registering your app
        var parameters = new OAuth2Parameters
        {
            ClientId = @"",
            ClientSecret = @"",
            RedirectUri = @"",
            Scope = @"https://www.google.com/m8/feeds/",
            AccessCode = "",
            AccessToken = "",  /* use the value returned from the old call to GetAccessToken here */
            RefreshToken = "", /* use the value returned from the old call to GetAccessToken here */
        };

        // get an access token
        OAuthUtil.RefreshAccessToken(parameters);

        // setup connection to contacts service
        var contacts = new ContactsRequest(new RequestSettings("<appname>", parameters));

        // get each contact
        foreach (var contact in contacts.GetContacts().Entries)
        {
            System.Diagnostics.Debug.WriteLine(contact.ContactEntry.Name.FullName);
        }

编辑：

            // generate the authorization url
            string url = OAuthUtil.CreateOAuth2AuthorizationUrl(parameters);

            // now use the url to authorize the app in the browser and get the access code
            (...)

            // get this information from Google's API Console after registering your app
            var parameters = new OAuth2Parameters
            {
                ClientId = @"",
                ClientSecret = @"",
                RedirectUri = @"",
                Scope = @"https://www.google.com/m8/feeds/",
                AccessCode = @"<from previous step>",
            };

            // get an access token
            OAuthUtil.GetAccessToken(parameters);

            // setup connection to contacts service
            var contacts = new ContactsRequest(new RequestSettings("<appname>", parameters));

            // get each contact
            foreach (var contact in contacts.GetContacts().Entries)
            {
                System.Diagnostics.Debug.WriteLine(contact.ContactEntry.Name.FullName);
            }