为什么我不能将事件添加为页面？

Question

I'm trying to add an event to a page in the name of the page. I'm the admin of the page and I found a lot of stuff to the topic, but, no matter what I do, it ends in the PHP Exception:

Uncaught Exception: You must be an admin of the specified page to perform the requested action.

I can add events with my app in my own profile. So, I think the problem is the Access Token. I tried several ways, but to me the best way seems to be:

1. Open the Graph API Explorer
2. Select my Application
3. Request a new access code with permissions manage_pages, publish_actions, publish_stream, create_event
4. Request /me/accounts
5. Get the access_token from the page I want to post to and use it in my script

My test script, that works in my own profile:

require 'src/facebook.php';

$facebook = new Facebook(array(
  'appId'  => $APPLICATION_ID,
  'secret' => $APPLICATION_SECRET,
  'cookie'     => false,
  'fileUpload' => true
));

$event_id = 0;
$event_name = "New Event API Test Event";
$event_start = '2013-12-04';
$event_privacy = "OPEN";

$ret_obj = $facebook->api('/'.$page_id.'/events?access_token='.$access_token, 'POST', 
array(
   'name' => $event_name,
   'start_time' => $event_start,
   'privacy_type' => $event_privacy,
   'location_id' => $location_id
));

if(isset($ret_obj['id'])) {
  echo 'Event with added. ID: ' . $ret_obj['id'];
} else {
  echo 'Couldn\'t create event';
}

What I did wrong?

Answer 1

You need a page access token.

Page Access Token – These access tokens are similar to user access tokens, except that they provide permission to APIs that read, write or modify the data belonging to a Facebook Page. To obtain a page access token you need to start by obtaining a user access token and asking for the manage_pages permission. Once you have the user access token you then get the page access token via the Graph API.

Doc: https://developers.facebook.com/docs/facebook-login/access-tokens/

Then use GET /me/accounts to get the access token associated to your page.