=============================== Working with Chats and Channels =============================== .. note:: These examples assume you have read :ref:`accessing-the-full-api`. Joining a chat or channel ************************* Note that `Chat`__\ s are normal groups, and `Channel`__\ s are a special form of `Chat`__\ s, 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 `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`__. 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 `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 `AddChatUserRequest`__, which use is very straightforward: .. code-block:: python from telethon.tl.functions.messages import AddChatUserRequest client(AddChatUserRequest( chat_id, user_to_add, fwd_limit=10 # Allow the user to see the 10 last messages )) 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 `CheckChatInviteRequest`__, which takes in the hash of said channel or group. __ https://lonamiwebs.github.io/Telethon/constructors/chat.html __ https://lonamiwebs.github.io/Telethon/constructors/channel.html __ https://lonamiwebs.github.io/Telethon/types/chat.html __ https://lonamiwebs.github.io/Telethon/methods/channels/join_channel.html __ https://lonamiwebs.github.io/Telethon/methods/channels/index.html __ https://lonamiwebs.github.io/Telethon/methods/messages/import_chat_invite.html __ https://lonamiwebs.github.io/Telethon/methods/messages/add_chat_user.html __ https://lonamiwebs.github.io/Telethon/methods/messages/check_chat_invite.html Retrieving all chat members (channels too) ****************************************** In order to get all the members from a mega-group or channel, you need to use `GetParticipantsRequest`__. As we can see it needs an `InputChannel`__, (passing the mega-group or channel you're going to use will work), and a mandatory `ChannelParticipantsFilter`__. The closest thing to "no filter" is to simply use `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:: It is **not** possible to get more than 10,000 members from a group. It's a hard limit impossed by Telegram and there is nothing you can do about it. Refer to `issue 573`__ for more. Note that ``GetParticipantsRequest`` returns `ChannelParticipants`__, which may have more information you need (like the role of the participants, total count of members, etc.) __ https://lonamiwebs.github.io/Telethon/methods/channels/get_participants.html __ https://lonamiwebs.github.io/Telethon/methods/channels/get_participants.html __ https://lonamiwebs.github.io/Telethon/types/channel_participants_filter.html __ https://lonamiwebs.github.io/Telethon/constructors/channel_participants_search.html __ https://lonamiwebs.github.io/Telethon/constructors/channels/channel_participants.html __ 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 `GetAdminLogRequest`__ for that, and you'll get AdminLogResults.events in return which in turn has the final `.action`__. __ https://lonamiwebs.github.io/Telethon/methods/channels/get_admin_log.html __ https://lonamiwebs.github.io/Telethon/types/channel_admin_log_event_action.html Admin Permissions ***************** Giving or revoking admin permissions can be done with the `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. | 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`__). __ https://lonamiwebs.github.io/Telethon/methods/channels/edit_admin.html __ 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 `GetMessagesViewsRequest`__, setting ``increment=True``: .. code-block:: python # Obtain `channel' through dialogs or through client.get_entity() or anyhow. # Obtain `msg_ids' through `.get_message_history()` or anyhow. Must be a list. client(GetMessagesViewsRequest( peer=channel, id=msg_ids, increment=True )) __ 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 __ https://lonamiwebs.github.io/Telethon/methods/messages/get_messages_views.html