Slack App 中的 "installed_app" 事件在哪里

where is the "installed_app" event in Slack App

我在Slack App的开发中一头雾水

我想在用户安装我的应用程序时向他们发送一些消息。

但是exists like installed_app事件中没有合适的事件。 (uninstalled_app事件只存在)

我应该指定哪个事件来接收用户安装我的应用程序的事件?

应用程序安装没有事件触发器(app uninstalled 事件出现在事件 API 中,找到更多相关信息 here) , this is because events are tied to each specific app and the processing needs to be conducted by that very app. You can, however, implement certain functionalities like sending messages to users after an app is installed in your workspace. You can find more about this here