=============================== Working with Chats and Channels =============================== .. note:: These examples assume you have read :ref:`accessing-the-full-api`. Joining a chat or channel ************************* Note that :tl:`Chat` are normal groups, and :tl:`Channel` are a special form of ``Chat``, which can also be super-groups if their ``megagroup`` member is ``True``. Joining a public channel ************************ Once you have the :ref:`entity ` of the channel you want to join to, you can make use of the :tl:`JoinChannelRequest` to join such channel: .. code-block:: python from telethon.tl.functions.channels import JoinChannelRequest client(JoinChannelRequest(channel)) # In the same way, you can also leave such channel from telethon.tl.functions.channels import LeaveChannelRequest client(LeaveChannelRequest(input_channel)) For more on channels, check the `channels namespace`__. __ https://lonamiwebs.github.io/Telethon/methods/channels/index.html Joining a private chat or channel ********************************* If all you have is a link like this one: ``https://t.me/joinchat/AAAAAFFszQPyPEZ7wgxLtd``, you already have enough information to join! The part after the ``https://t.me/joinchat/``, this is, ``AAAAAFFszQPyPEZ7wgxLtd`` on this example, is the ``hash`` of the chat or channel. Now you can use :tl:`ImportChatInviteRequest` as follows: .. code-block:: python from telethon.tl.functions.messages import ImportChatInviteRequest updates = client(ImportChatInviteRequest('AAAAAEHbEkejzxUjAUCfYg')) Adding someone else to such chat or channel ******************************************* If you don't want to add yourself, maybe because you're already in, you can always add someone else with the :tl:`AddChatUserRequest`, which use is very straightforward, or :tl:`InviteToChannelRequest` for channels: .. code-block:: python # For normal chats from telethon.tl.functions.messages import AddChatUserRequest # Note that ``user_to_add`` is NOT the name of the parameter. # It's the user you want to add (``user_id=user_to_add``). client(AddChatUserRequest( chat_id, user_to_add, fwd_limit=10 # Allow the user to see the 10 last messages )) # For channels (which includes megagroups) from telethon.tl.functions.channels import InviteToChannelRequest client(InviteToChannelRequest( channel, [users_to_add] )) Checking a link without joining ******************************* If you don't need to join but rather check whether it's a group or a channel, you can use the :tl:`CheckChatInviteRequest`, which takes in the hash of said channel or group. Retrieving all chat members (channels too) ****************************************** .. note:: Use the `telethon.telegram_client.TelegramClient.iter_participants` friendly method instead unless you have a better reason not to! This method will handle different chat types for you automatically. In order to get all the members from a mega-group or channel, you need to use :tl:`GetParticipantsRequest`. As we can see it needs an :tl:`InputChannel`, (passing the mega-group or channel you're going to use will work), and a mandatory :tl:`ChannelParticipantsFilter`. The closest thing to "no filter" is to simply use :tl:`ChannelParticipantsSearch` with an empty ``'q'`` string. If we want to get *all* the members, we need to use a moving offset and a fixed limit: .. code-block:: python from telethon.tl.functions.channels import GetParticipantsRequest from telethon.tl.types import ChannelParticipantsSearch from time import sleep offset = 0 limit = 100 all_participants = [] while True: participants = client(GetParticipantsRequest( channel, ChannelParticipantsSearch(''), offset, limit, hash=0 )) if not participants.users: break all_participants.extend(participants.users) offset += len(participants.users) .. note:: If you need more than 10,000 members from a group you should use the mentioned ``client.get_participants(..., aggressive=True)``. It will do some tricks behind the scenes to get as many entities as possible. Refer to `issue 573`__ for more on this. Note that :tl:`GetParticipantsRequest` returns :tl:`ChannelParticipants`, which may have more information you need (like the role of the participants, total count of members, etc.) __ https://github.com/LonamiWebs/Telethon/issues/573 Recent Actions ************** "Recent actions" is simply the name official applications have given to the "admin log". Simply use :tl:`GetAdminLogRequest` for that, and you'll get AdminLogResults.events in return which in turn has the final `.action`__. __ https://lonamiwebs.github.io/Telethon/types/channel_admin_log_event_action.html Admin Permissions ***************** Giving or revoking admin permissions can be done with the :tl:`EditAdminRequest`: .. code-block:: python from telethon.tl.functions.channels import EditAdminRequest from telethon.tl.types import ChannelAdminRights # You need both the channel and who to grant permissions # They can either be channel/user or input channel/input user. # # ChannelAdminRights is a list of granted permissions. # Set to True those you want to give. rights = ChannelAdminRights( post_messages=None, add_admins=None, invite_users=None, change_info=True, ban_users=None, delete_messages=True, pin_messages=True, invite_link=None, edit_messages=None ) # Equivalent to: # rights = ChannelAdminRights( # change_info=True, # delete_messages=True, # pin_messages=True # ) # Once you have a ChannelAdminRights, invoke it client(EditAdminRequest(channel, user, rights)) # User will now be able to change group info, delete other people's # messages and pin messages. .. note:: Thanks to `@Kyle2142`__ for `pointing out`__ that you **cannot** set all parameters to ``True`` to give a user full permissions, as not all permissions are related to both broadcast channels/megagroups. E.g. trying to set ``post_messages=True`` in a megagroup will raise an error. It is recommended to always use keyword arguments, and to set only the permissions the user needs. If you don't need to change a permission, it can be omitted (full list `here`__). Restricting Users ***************** Similar to how you give or revoke admin permissions, you can edit the banned rights of an user through :tl:`EditAdminRequest` and its parameter :tl:`ChannelBannedRights`: .. code-block:: python from telethon.tl.functions.channels import EditBannedRequest from telethon.tl.types import ChannelBannedRights from datetime import datetime, timedelta # Restricting an user for 7 days, only allowing view/send messages. # # Note that it's "reversed". You must set to ``True`` the permissions # you want to REMOVE, and leave as ``None`` those you want to KEEP. rights = ChannelBannedRights( until_date=datetime.now() + timedelta(days=7), view_messages=None, send_messages=None, send_media=True, send_stickers=True, send_gifs=True, send_games=True, send_inline=True, embed_links=True ) # The above is equivalent to rights = ChannelBannedRights( until_date=datetime.now() + timedelta(days=7), send_media=True, send_stickers=True, send_gifs=True, send_games=True, send_inline=True, embed_links=True ) client(EditBannedRequest(channel, user, rights)) Kicking a member **************** Telegram doesn't actually have a request to kick an user from a group. Instead, you need to restrict them so they can't see messages. Any date is enough: .. code-block:: python from telethon.tl.functions.channels import EditBannedRequest from telethon.tl.types import ChannelBannedRights client(EditBannedRequest(channel, user, ChannelBannedRights( until_date=None, view_messages=True ))) __ https://github.com/Kyle2142 __ https://github.com/LonamiWebs/Telethon/issues/490 __ https://lonamiwebs.github.io/Telethon/constructors/channel_admin_rights.html Increasing View Count in a Channel ********************************** It has been asked `quite`__ `a few`__ `times`__ (really, `many`__), and while I don't understand why so many people ask this, the solution is to use :tl:`GetMessagesViewsRequest`, setting ``increment=True``: .. code-block:: python # Obtain `channel' through dialogs or through client.get_entity() or anyhow. # Obtain `msg_ids' through `.get_messages()` or anyhow. Must be a list. client(GetMessagesViewsRequest( peer=channel, id=msg_ids, increment=True )) Note that you can only do this **once or twice a day** per account, running this in a loop will obviously not increase the views forever unless you wait a day between each iteration. If you run it any sooner than that, the views simply won't be increased. __ https://github.com/LonamiWebs/Telethon/issues/233 __ https://github.com/LonamiWebs/Telethon/issues/305 __ https://github.com/LonamiWebs/Telethon/issues/409 __ https://github.com/LonamiWebs/Telethon/issues/447