Facebook图谱API：获取小组相册中的照片

Question

在我提出问题之前，先给出一些我已经能够实现的信息：

1. I'm able to get the group feed in JSON format

   • I am accessing a group. I have got a long lived access token and i could access the feed.
   • Inputs I have are: group_id, acess_token.
   • URL USED:
     https://graph.facebook.com/v2.1/{group_id}/feed?access_token={access_token}
     
     • The URL gave JSON formatted output of all the posts etc.

2. I'm able to achieve the albums of the group

   • URL USED:
     https://graph.facebook.com/v2.1/{group_id}/albums?access_token={access_token}
     • The URL gave JSON formatted output of all the albums (their IDs, name, etc.).

3. What I'm NOT able to achieve:

   • URL USED:
     https://graph.facebook.com/v2.1/{album_id}/photos?access_token={access_token}
   • URL USED:
     https://graph.facebook.com/v2.1/{album_id}?fields=photos&access_token={access_token}

   • URL USED:
     https://graph.facebook.com/v2.1/{album_id}/photos?fields=picture,source,name&type=uploaded&access_token={access_token}

     {
         "data": [
     
         ]
     }
     

   • I even tried the above in the 'Graph API Explorer', I get the same output.

   • I have tried for various group ids to see if some group ids may be the source of the problem. But I get the same output as shown above.
   • I have gone through all related questions on Stack Overflow. I am using the same URL formats as mentioned in the posts. They say that they can see the photos' data in JSON.

- Santhosh

Answer 1

由于权限限制，除非用户上传了这些相册，否则无法检索所有组相册中的照片。 Graph API reference提到要检索常规相册，需要以下之一：

- 如果相册是公共的，则需要任何有效的访问令牌。 - 用户访问令牌user_photos权限，以检索会话用户上传的任何相册。

奇怪的是，/{group_id}/albums边缘是未记录的。从我的经验中，我学到了如何访问组相册：

- 具有user_photos权限的用户访问令牌将允许访问用户上传的相册信息和照片。 - 任何尝试访问用户没有上传的任何相册（包括公共组中的公共相册）都将返回相册数据，但不是照片信息。

您正在使用正确的查询。为了完整起见，我将在此重述它们。 相册信息

https://graph.facebook.com/v2.1/{group_id}/albums?access_token={access_token}

照片

https://graph.facebook.com/v2.1/{album_id}?fields=photos&access_token={access_token}

您仍然可以从/{group_id}/feed访问照片附件（但不包括相册）。

- Matthew K