Chat not found 400 about td

[LsdLucifer]

Can I somehow retrieve data about groups (chats) from another user-bot's db.sqlite for my new user-bot?

[levlam]

No. You can't access chats by their identifier. You must find them in the same way as you would do in any Telegram app.

[LsdLucifer]

@levlam How can I implement functionality for my program to automatically join a group and subscribe to it?

[levlam]

You need to do exactly the same actions as you would do in a Telegram app.

[LsdLucifer]

@levlam Why does TdApi.JoinChat even exist then? I want my program to add a user to a group. How can I do that? I'm not interested in doing it manually through Telegram.

[levlam]

You must do the same actions with appropriate methods.

[LsdLucifer]

@levlam When I use this method, I get a 400 error 'chat not found,' as I mentioned above. Please provide an example of using this method.

[levlam]

You don't enter chat identifier in apps. You must find the chat first in the same way you do in the apps.

[LsdLucifer]

@levlam I understand. You're suggesting that I manually enter the Telegram app and join the group. However, I have a link and a chat ID for the group. I want to join it automatically without opening Telegram. How can I use tdlib Java to join groups using their links or chat IDs? Ideally, I'd like to join via a regular link. (I've been able to join using invitation links, but I need to join the group via a regular link).

[levlam]

No, I suggest that you call the same methods, you would use in any other app.

Any internal link can be processed using getInternalLinkType and following documentation for the returned object.