如何使用facebook php SDK进行批处理请求 - How to do Batch request using the facebook php SDK

How to do Batch request using the facebook php SDK

在我的项目中，我在一个表中有很多事件ID。我想遍历这些 id，并向 facebook 请求该特定 id 的其他信息。

现在我为每个 ID 发出不同的 http 请求。我想把它放在一个批处理中，这样我就可以传递所有的id，并在一个http请求中接收所有这些事件的所有其他信息。

我使用 Facebook PHP sdk

这是一个批量执行两个请求的粗略示例......

$batch = array();
$req = array(
    'method'       => 'GET',
    'relative_url' => '/me'
);
$batch[] = json_encode($req);
$req = array(
    'method'       => 'GET',
    'relative_url' => '/me/albums'
);
$batch[] = json_encode($req);
$params = array(
    'batch' => '[' . implode(',',$batch) . ']'
);
try {
    $info = $facebook->api('/','POST',$params);
} catch(FacebookApiException $e) {
    error_log($e);
    $info = null;
}
if(!empty($info)){
    if($info[0]['code'] == '200'){
        $user_profile = json_decode($info[0]['body']);
    }
    if($info[1]['code'] == '200'){
        $user_albums  = json_decode($info[1]['body']);
    }
    echo "<pre>User Profile:'n";
    print_r($user_profile);
    echo "'nAlbums'n";
    print_r($user_albums);
    echo "<pre>";
}

这是一个粗略的示例，但它应该提供执行批处理请求的基础知识......

use Facebook'FacebookSession;
use Facebook'FacebookRequest;
use Facebook'GraphUser;
use Facebook'FacebookRequestException;
FacebookSession::setDefaultApplication('YOUR_APP_ID','YOUR_APP_SECRET');
// Use one of the helper classes to get a FacebookSession object.
//   FacebookRedirectLoginHelper
//   FacebookCanvasLoginHelper
//   FacebookJavaScriptLoginHelper
// or create a FacebookSession with a valid access token:
$session = new FacebookSession('access-token-here');
try {
  $response = (new FacebookRequest($session, 'GET', '/me'))->execute();
  $params = [
    [ // call 0 - get current logged in user
      "method"  => "GET",
      "relative_url"  => "me"
    ],
    [ // call 1 - get current logged in user's friends
      "method"  => "GET",
      "relative_url"  => "me/friends"
    ],
    [ // call 3 - get current logged in user's likes
      "method"  => "GET",
      "relative_url"  => "me/likes"
    ],
    [// call 4 - get current logged in user's albums and photos
      "method"  => "GET",
      "relative_url"  => "method/fql.multiquery/?queries=" . json_encode([
        "albums"  => urlencode("SELECT aid, object_id, type, name, visible, owner, cover_pid, cover_object_id, visible, photo_count, video_count FROM album WHERE owner=me()"),
        "album_covers"  => urlencode("SELECT src_big, src_small, images, aid FROM photo WHERE pid IN (SELECT cover_pid FROM #albums)"),
        "photos"  => urlencode("SELECT pid, object_id, owner, src_big, src_small, images, aid FROM photo WHERE aid IN (SELECT aid FROM #albums)")
      ])
    ];

  $response = (new FacebookRequest($session, 'POST', '?batch='.json_encode($params) ))->execute();
  $objects = $response->getGraphObject();
  foreach($objects->asArray() as $object){
    $body = json_decode($object->body, 1);
    print_r($body);
    echo "--------------'n";
  }
} catch(FacebookRequestException $e) {
  echo "Exception occured, code: " . $e->getCode();
  echo " with message: " . $e->getMessage();
}

您可以像这样批处理这些请求：

curl '
-F 'access_token=…' '
-F 'batch=[ '
        {"method": "GET", "relative_url": "me"}, '
        {"method": "GET", "relative_url": "me/friends?limit=50"} '
    ]''
https://graph.facebook.com

https://developers.facebook.com/docs/reference/api/batch/

批大小限制为 50。