Question

我正在使用Google Contacts Api。我不确定是否可以发送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作为此代码的回复，但如果我将用户名和密码作为参数发送，我就能得到回复。

Answer 1

哎呀，对不起，我第一次没弄错。我在一个真实的应用程序中使用此代码，我只是在我的代码中做了一些不同的事情因为我不断刷新令牌。
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，在您针对访问代码致电GetAccessToken()后，您的参数数据结构将包含AccessToken和RefreshToken字段。如果您存储这两个值，您可以在后续调用中的参数结构中设置它们（允许您以后跳过请求授权）而不是调用GetAccessToken()只需调用RefreshAccessToken(parameters)即可始终可以访问联系人。合理？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);
        }

修改：

// 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); }

使用Google通讯录Api导入联系人C＃

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