Facebook PHP Graph API未返回完整数据 [英] Facebook PHP Graph API not returning complete data

问题描述

我在使用Facebook的PHP SDK版本4.0时遇到问题.

I'm having an issue with Facebook's PHP SDK version 4.0.

我只是想通过Graph API检索insights/page_fans_city指标:

I'm simply trying to retrieve the insights/page_fans_city metric via the Graph API:

$request = new FacebookRequest($session, 'GET', 
    '/{my object}/insights/page_fans_city', 
    array('period' => 'lifetime'));

$response = $request->execute();
$client_graph_object = $response->getGraphObject();

print_r($client_graph_object);

但是，不会返回任何数据:

However, no data is returned:

Facebook\GraphObject Object
(
[backingData:protected] => Array
    (
        [data] => Array
            (
            )

        [paging] => stdClass Object
            (
                [previous] => https://graph.facebook.com/v2.0/...
                [next] => https://graph.facebook.com/v2.0/...
            )

    )

)

我知道我拥有要查询的数据.我可以通过Graph Explorer发出完全相同的请求:

I know that I have the Insights data that I'm requesting. I can make the exact same request via the Graph Explorer:

→/v.2.0/{我的对象}/insights/page_fans_city?period = lifetime

{
  "data": [
    {
      "id": "{my object}/insights/page_fans_city/lifetime", 
      "name": "page_fans_city", 
      "period": "lifetime", 
      "values": [
        {
          "value": {
            ...
          },
          "end_time": "2014-08-01T07:00:00+0000"
        },
        {
          "value": {
            ...
          },
          "end_time": "2014-08-02T07:00:00+0000"
        }
      ], 
      "title": "Lifetime Likes by City", 
      "description": "Lifetime: Aggregated Facebook location data, sorted by city, about the people who like your Page. (Unique Users)"
    }
  ], 
  "paging": {
    "previous": "https://graph.facebook.com/v2.0/..., 
    "next": "https://graph.facebook.com/v2.0/...
  }
}

我应该注意，如果我省略了page_fans_city段，我将 am 接收数据.省略时-我只能查看page_fans_country的数据.因此

I should note that I am receiving data if I omit the page_fans_city segment. When it's omitted- I can view data for page_fans_country only. Therefore

$request = new FacebookRequest($session, 'GET', 
    '/{myobject}/insights/page_fans_country', 
    array('period' => 'lifetime'));

和

$request = new FacebookRequest($session, 'GET', 
    '/{myobject}/insights', 
    array('period' => 'lifetime'));

将为我工作...

我怀疑这是我的Access令牌-但我不确定为什么会是这种情况.我创建的应用仅需要read_insights权限.

I suspect it's my Access token- but I'm not sure why that would be the case. The app that I created only requires the read_insights permission.

有什么想法或建议吗?

预先感谢，
迈克

Thanks in advance,
Mike

推荐答案

这是一个权限问题. 如果您看到过:

It was a permissions issue. If you ever see:

{
    "data": [
    ],
    ...
}

您的访问令牌可能没有足够的特权来访问您所请求的数据(即根本没有数据).

It's likely your access token does not have sufficient privileges to access the data you're requesting (that or there's simply no data).

我的问题是，即使我是应用程序的开发者 ，并且它已被Facebook批准(具有manage_pages和read_insights权限)-我无法使用应用访问令牌以获取见解数据.

My problem was that even though I was the Developer of the app and it was approved by Facebook (with the manage_pages and read_insights permissions)- I could not use an app access token to retrieve the insights data.

我需要一个用户访问令牌！

我通过按 stackoverflow线程也很有用.

I easily generated the user access token by manually creating a login flow per Facebook's documentation. This stackoverflow thread was useful, too.

有关Facebook令牌的更多信息，此处.

More info on Facebook tokens here.

希望这对遇到这个问题的人有所帮助！

Hope this helps anyone who stumbles across this thread!

-迈克

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