Search word in all Telegram groups with telethon

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Is it possible to search for one or multiple words in messages on ALL telegram groups using Telethon?

For example i'm member in only one telegram group "One". I want to search in ALL groups for "promotion" and "bonus" in their group messages. I didn't know the name of the group and I'm not a member - just wanted to figure it out.

I think someone (@fquinto) made something like what i want but he search on a Group names I want in Group messages.

How to search for groups and channel in telegram using telethon?

@fquinto https://stackoverflow.com/users/5824889/fquinto

telegram telethon
1 Answers

You can perform what's known as a "global" search with client and searching in "no" chat (meaning, no particular chat, so globally). This will search in all of your dialogs:

async for message in client.iter_messages(None, search='search'):
    ...

The search works in the same way as it does in official applications, so somewhat fuzzy search of a text, not "this word or this other word" (you can perform multiple searches for that).

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