telegram - Telegram bot 可以检测到新成员加入 channel 事件吗？

Question

我有一个 Telegram 机器人，我将此机器人设置为 channel 管理员。现在，当新用户通常加入 channel (不是群组)时， channel 上没有消息，我们也无法通过 getUpdates 获得消息。方法。从技术上讲，是否可以发布一条消息说“一个新用户加入了 channel ”——这会捕获“新成员”事件？让我知道。

Answer 1

不幸的是你不能现在检查用户是否通过 Telegram bot API 加入 channel 。也许在 future 你可以。

但是您可以在此处为团体或 super 团体执行此操作:

https://core.telegram.org/bots/api#message查找 new_chat_members
这些也很有用:

Telegram Bot Event When Users Join To Channel

How to get channel updates with Telegram robot

更新:

But a TG bot api with admin rights can see all its members. So even if the api doesn’t support it, it can track a count and see if it increases and then know that a new member joined. Correct? I don’t need to know exactly WHICH new member joined but just know a new one joined to share a welcome message

是的，您可以使用 getChatMembersCount .这是来自此 link 的信息:

getChatMembersCount: Use this method to get the number of members in a chat. Returns Int on success.

也可以使用 getChatMember和 here是一些信息:

getChatMember: Use this method to get information about a member of a chat. Returns a ChatMember object on success.