python - 如何检查用户是否订阅了特定的 Telegram channel (Python/PyTelegramBotApi)？

Question

我正在使用PyTelegramBotApi 库 编写一个Telegram bot，我希望实现检查用户订阅某个 Telegram 的功能channel，如果没有，则提供订阅。预先感谢您的回答!

Answer 1

使用getChatMember检查用户是否是 channel 成员的方法。

getChatMember

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

import telebot

bot = telebot.TeleBot("TOKEN")

CHAT_ID = -1001...
USER_ID = 700...

result = bot.get_chat_member(CHAT_ID, USER_ID)
print(result)

bot.polling()

示例结果:

如果用户是成员(member)，您会收到用户信息

{'user': {'id': 700..., 'is_bot': False, 'first_name': '', 'username': None, 'last_name': None, ... }

否则为异常

telebot.apihelper.ApiTelegramException: A request to the Telegram API was unsuccessful. Error code: 400 Description: Bad Request: user not found

---

关于如何在你的项目中使用它的例子

import telebot
from telebot.apihelper import ApiTelegramException

bot = telebot.TeleBot("BOT_TOKEN")

CHAT_ID = -1001...
USER_ID = 700...

def is_subscribed(chat_id, user_id):
    try:
        bot.get_chat_member(chat_id, user_id)
        return True
    except ApiTelegramException as e:
        if e.result_json['description'] == 'Bad Request: user not found':
            return False

if not is_subscribed(CHAT_ID, USER_ID):
    # user is not subscribed. send message to the user
    bot.send_message(CHAT_ID, 'Please subscribe to the channel')
else:
    # user is subscribed. continue with the rest of the logic
    # ...

bot.polling()