`MessengerExtensions.getContext()`

MessengerエクステンションSDK

このメソッドは、MessengerエクステンションSDKの一部です。サイトにSDKを実装する方法については、こちらのMessengerエクステンションSDKの追加に関するページをご覧ください。

利用の条件

このAPIは、Androidの場合はv113以降のMessenger、iOSの場合はv114以降のMessengerでのみご利用いただけます。

所定のクライアントで利用可能かを確認するには、getSupportedFeatures()を呼び出し、応答の中にcontextプロパティがあるか確認します。

The getContext() method retrieves additional information about the person and the thread that opened the webview within Messenger. It is useful for creating interactive group experiences and games, as well as restricting any content that was intended to be shared only to a certain thread.

Method

MessengerExtensions.getContext(app_id, success, error)

Example

MessengerExtensions.getContext('YOUR_APP_ID', 
  function success(thread_context){
    // success
  },
  function error(err){
    // error
  }
);

Parameters

Parameter	Type	Description
`app_id`	String	Your app ID.
`success`	Function	Success callback function. Receives the thread context object as an argument.
`error`	Function	Error callback function. Called if Messenger was unable to retrieve the thread context.

`thread_context` Object

The thread_context object is passed to the success callback.

{
  "thread_type": "GROUP",
  "tid": "1411911565550430",
  "psid": "1293479104029354",
  "signed_request": "5f8i9XXH2hEaykXHKFvu-E5Nr6QRqN002JO7yl-w_9o.eyJhbGdvcml0aG0iOiJITUFDLVNIQTI1NiIsImlzc3VlZF9hdCI6MTUwNDA0NjM4MCwicGFnZV9pZCI6NjgyNDk4MTcxOTQzMTY1LCJwc2lkIjoiMTI1NDQ1OTE1NDY4MjkxOSIsInRocmVhZF90eXBlIjoiVVNFUl9UT19QQUdFIiwidGlkIjoiMTI1NDQ1OTE1NDY4MjkxOSJ9"
}

Properties

Property	Type	Description
`tid`	String	The ID of the thread the webview was opened from.
`thread_type`	String	The type of thread the webview was openeed from. The possible types are: `USER_TO_PAGE`: A conversation between a user and a page. `USER_TO_USER`: A conversation between two users. `GROUP`: A conversation between multiple users. Number of participants for such conversations can change from 1 to maximum supported by Messenger group capabilities.
`psid`	String	The page-scoped user ID for the person that opened the webview.
`signed_request`	String	A signed request containing the above information. Used to verify the authenticity of the thread context source. For more information, see Validating `signed_request`.

MessengerExtensions.getContext()