FROM 子句可用的事件主题

事件主题名释义
$events/message_delivered消息投递
$events/message_acked消息确认
$events/message_dropped消息丢弃
$events/client_connected连接完成
$events/client_disconnected连接断开
$events/session_subscribed订阅
$events/session_unsubscribed取消订阅