使用 Telegram API 阅读公共频道文本

Question

我想创建一个小脚本，用于从公共频道获取 Telegram 文本（我不是该频道的管理员）。

我在这里发现了另一个问题： Read the messages of the public channels from Telegram
我已尝试使用答案中所述的 Telethon，但它不起作用：

from telethon.tl.functions.contacts import ResolveUsernameRequest
import telethon

client = telethon.TelegramClient("session.txt", api_id=XYZ, api_hash='XYZ')
client.connect()
response = client.invoke(ResolveUsernameRequest("test"))
print(response.channel_id)
print(response.access_hash)

抛出此错误：

C:/Users/mypc/PycharmProjects/untitled/aa.py:5: RuntimeWarning: coroutine 'TelegramBaseClient.connect' was never awaited
  client.connect()
RuntimeWarning: Enable tracemalloc to get the object allocation traceback
Traceback (most recent call last):
  File "C:/Users/mypc/PycharmProjects/untitled/aa.py", line 6, in <module>
    response = client.invoke(ResolveUsernameRequest("test"))
AttributeError: 'TelegramClient' object has no attribute 'invoke'

我已尝试阅读 API 文档，但我并没有完全理解这些调用的工作原理：

https://core.telegram.org/method/channels.exportMessageLink

https://core.telegram.org/method/channels.joinChannel

https://core.telegram.org/method/channels.getMessages

如果有人能向我解释这些是如何工作的，我将不胜感激。

Answer 1

就像它说的那样，TelegramClient 没有 invoke 方法。你试过client(ResolveUsernameRequest("test"))吗？

Answer 2

那个答案很老了。如果我们检查Telethon's Quick-Start，我们有足够的代码来满足您的需求：

from telethon import TelegramClient

# Remember to use your own values from my.telegram.org!
api_id = 12345
api_hash = '0123456789abcdef0123456789abcdef'
client = TelegramClient('anon', api_id, api_hash)

async def main():
    # You can print the message history of any chat:
    async for message in client.iter_messages('USERNAME OF THE CHANNEL'):
        print(message.sender.username, message.text)

with client:
    client.loop.run_until_complete(main())