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How do I download Telegram messages in reverse? – Telegram API

I am getting all messages of a Telegram channel via GetHistoryRequest. I would like to run a script every day, which gives me the new messages. Is it possible to reverse the order of the messages inside GetHistoryRequest? I have seen an additional property reverse=True, but this gives me an error message. Here is the code (which is available online)

history = client(GetHistoryRequest(
            peer=my_channel,
            offset_id=0,
            offset_date=None,
            add_offset=0,
            limit=limit,
            max_id=0,
            min_id=0,
            hash=0
        ))
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2

Answers


  1. 0

    According to the docs
    GetHistoryRequest does not have a reverse argument. But, the method client.iter_messages does

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  2. 0

    This works here . Downaload 100 message

    from telethon.tl import functions, types

channel_link = "https://t.me/joinchat/xxxxxx-xxx"
channel_hash = channel_link.strip().split("joinchat/",1)[1]


channel = await client(functions.messages.CheckChatInviteRequest(hash=channel_hash))
    async for message in client.iter_messages(channel.chat, limit = 100,reverse=True):
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