Google 联系人 API returns 我发送到的电子邮件地址列表，但不是我的联系人列表中的那些？

Question

Google 联系人 API returns 我发送到的电子邮件地址列表，但不在我的联系人列表中？

我正在使用 google 联系人 api 并尝试获取我的 Gmail 联系人中的电子邮件列表。 google 联系人位于 https://contacts.google.com/u/0/preview/all .

下面是我使用的代码：

public List<GMail> GetContacts(GooglePlusAccessToken serStatus)
{
    List<GMail> ret = new List<GMail>();

    string google_client_id = _ClientId;
    string google_client_sceret = _ClientSeceret;

    string refreshToken = serStatus.refresh_token;
    string accessToken = serStatus.access_token;
    string scopes = "https://www.google.com/m8/feeds/contacts/default/full/";
    OAuth2Parameters oAuthparameters = new OAuth2Parameters()
    {
        ClientId = google_client_id,
        ClientSecret = google_client_sceret,
        RedirectUri = GetRedirectUrl(), 
        Scope = scopes,
        AccessToken = accessToken,
        RefreshToken = refreshToken
    };

    RequestSettings settings = new RequestSettings("<var>Invite GMail Friends</var>", oAuthparameters);
    ContactsRequest cr = new ContactsRequest(settings);
    ContactsQuery query = new ContactsQuery(ContactsQuery.CreateContactsUri("default"));
    query.NumberToRetrieve = _NumberToRetrieve;
    Feed<Contact> feed = cr.Get<Contact>(query);

    foreach (Contact entry in feed.Entries)
    {
        foreach (EMail email in entry.Emails)
        {
            GMail g = new GMail(email.Address);
            ret.Add(g);
        }
    }

    return ret;
}

但由于某些原因，代码 returns 是我过去发送过的电子邮件地址列表，而不是我联系人列表中的电子邮件。这个对吗？有人知道为什么吗？

谢谢

** 感谢艾伦的回答，这是我的代码，效果很好！联系人组其实是：SystemGroup:MyContacts@gmail.com**

public List<GMail> GetContacts_2(GooglePlusAccessToken serStatus)
{
    List<GMail> ret = new List<GMail>();

    string google_client_id = _ClientId;
    string google_client_sceret = _ClientSeceret;
    /*Get Google Contacts From Access Token and Refresh Token*/
    string refreshToken = serStatus.refresh_token;
    string accessToken = serStatus.access_token;
    string scopes = "https://www.google.com/m8/feeds/groups/default/full/?v=3.0";

    OAuth2Parameters oAuthparameters = new OAuth2Parameters()
    {
        ClientId = google_client_id,
        ClientSecret = google_client_sceret,
        RedirectUri = GetRedirectUrl(), 
        Scope = scopes,
        AccessToken = accessToken,
        RefreshToken = refreshToken
    };


    RequestSettings settings = new RequestSettings("<var>Invite GMail Friends</var>", oAuthparameters);
    ContactsRequest cr = new ContactsRequest(settings);
    GroupsQuery query = new GroupsQuery(GroupsQuery.CreateGroupsUri("default"));
    query.NumberToRetrieve = 1000;  // _NumberToRetrieve; // 100;// 5000;
    //Feed feed = cr.Get(query);
    Feed<Group> feed = cr.Get<Group>(query);
    string gpId = string.Empty;
    foreach (Group gp in feed.Entries)
    {
        if (gp.Title.Contains("Contacts"))
        {
            gpId = gp.Id;
            //break;
        }

        //// for testing
        //GMail g = new GMail(gp.Title.Replace(" ", "") + "@gmail.com");
        //ret.Add(g);
    }

    if (gpId.Length > 0)
    {
        scopes = "https://www.google.com/m8/feeds/contacts/default/full/?v=3.0";

        oAuthparameters = new OAuth2Parameters()
        {
            ClientId = google_client_id,
            ClientSecret = google_client_sceret,
            RedirectUri = GetRedirectUrl(),
            Scope = scopes,
            AccessToken = accessToken,
            RefreshToken = refreshToken
        };

        settings = new RequestSettings("<var>Invite GMail Friends</var>", oAuthparameters);
        //ContactsRequest cr = new ContactsRequest(settings);
        cr = new ContactsRequest(settings);
        ContactsQuery query2 = new ContactsQuery(ContactsQuery.CreateContactsUri("default"));
        query2.NumberToRetrieve = _NumberToRetrieve; // 100;// 5000;
        query2.OrderBy = ContactsQuery.OrderByLastModified;
        query2.SortOrder = ContactsQuery.SortOrderDescending;
        query2.Group = gpId;
        Feed<Contact> feed2 = cr.Get<Contact>(query2);

        foreach (Contact entry in feed2.Entries)
        {
            foreach (EMail email in entry.Emails)
            {
                GMail g = new GMail(email.Address);
                ret.Add(g);
            }
        }

        //if (ret.Count <= 0)
        //{
        //    GMail g = new GMail("NoContact@gmail.com");
        //    ret.Add(g);
        //}

    }
    //else
    //{
    //    // for testing
    //    GMail g = new GMail("NoGroup@gmail.com");
    //    ret.Add(g);
    //}

    return ret;
}

Answer 1

首先，我感受到你的痛苦。 Google 的 API 是最差的。期间.

我绕过它的方式（不是一种有效的做事方式，但这是我能找到的最好的方式。否则 Google returns 所有那些曾经与帐户持有人，在一个典型的 GMail 帐户中可能有数千个这样的条目））是这个（它的 VB.net 代码，但您可以获得要点并轻松转换）

首先检索联系人组并查找标题 "CONTACTS"

Dim settings As New RequestSettings("MyApp", RefreshOAuthToken())
Dim cr As New ContactsRequest(settings)
    'retrieve Contacts group (this is to retrieve only real contacts)
Dim groupquery As New GroupsQuery(GroupsQuery.CreateGroupsUri("default"))
Dim fgrp As Feed(Of Group) = cr.Get(Of Group)(groupquery)
Dim GroupAtomId As String = ""
For Each gr In fgrp.Entries
    If gr.Title.Contains("Contacts") Then
       GroupAtomId = gr.Id
             Exit For
    End If
Next

然后使用联系人组的 ID 在联系人中搜索

Dim query As New ContactsQuery(ContactsQuery.CreateContactsUri("default"))
query.NumberToRetrieve = 2000
query.OrderBy = ContactsQuery.OrderByLastModified
query.SortOrder = ContactsQuery.SortOrderDescending
query.Group = GroupAtomId

Dim f As Feed(Of Contact) = cr.Get(Of Contact)(query)

For Each entry As Contact In f.Entries
 'Do something with the data, these are real contacts in GMail
Next

所以这里的重点是首先获取群组ID并将其用于联系人搜索。我相信这就是您的代码所缺少的。

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