fb_parse_signed_request

Fcebook parser for signed_request

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

Usage

fb_parse_signed_request("signed_request","facebook_app_secret);

Return Error Object or data like:

{ 
	  algorithm: 'HMAC-SHA256',
	  issued_at: 1504046380,
	  page_id: 682498171943165,
	  psid: '1254459154682919',
	  thread_type: 'USER_TO_PAGE',
	  tid: '1254459154682919' 
  }

Tests

npm test