Completely overhaul the documentation

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Lonami Exo
2019-05-09 12:24:37 +02:00
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===============================
Working with Chats and Channels
===============================
.. note::
These examples assume you have read :ref:`full-api`.
.. contents::
Joining a chat or channel
=========================
Note that :tl:`Chat` are normal groups, and :tl:`Channel` are a
special form of :tl:`Chat`, which can also be super-groups if
their ``megagroup`` member is ``True``.
Joining a public channel
========================
Once you have the :ref:`entity <entities>` 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.
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 ChatAdminRights
# You need both the channel and who to grant permissions
# They can either be channel/user or input channel/input user.
#
# ChatAdminRights is a list of granted permissions.
# Set to True those you want to give.
rights = ChatAdminRights(
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 = ChatAdminRights(
# change_info=True,
# delete_messages=True,
# pin_messages=True
# )
# Once you have a ChatAdminRights, invoke it
client(EditAdminRequest(channel, user, rights))
# User will now be able to change group info, delete other people's
# messages and pin messages.
#
# In a normal chat, you should do this instead:
from telethon.tl.functions.messages import EditChatAdminRequest
client(EditChatAdminRequest(chat_id, user, is_admin=True))
.. 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 a user through :tl:`EditBannedRequest` and its parameter
:tl:`ChatBannedRights`:
.. code-block:: python
from telethon.tl.functions.channels import EditBannedRequest
from telethon.tl.types import ChatBannedRights
from datetime import datetime, timedelta
# Restricting a 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 = ChatBannedRights(
until_date=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 = ChatBannedRights(
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))
You can also use a ``datetime`` object for ``until_date=``, or even a
Unix timestamp. Note that if you ban someone for less than 30 seconds
or for more than 366 days, Telegram will consider the ban to actually
last forever. This is officially documented under
https://core.telegram.org/bots/api#restrictchatmember.
Kicking a member
================
Telegram doesn't actually have a request to kick a 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 ChatBannedRights
client(EditBannedRequest(
channel, user, ChatBannedRights(
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

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.. _telethon_projects:
=======================
Projects using Telethon
=======================
This page lists some real world examples showcasing what can be built with
the library.
.. note::
Do you have a project that uses the library or know of any that's not
listed here? Feel free to leave a comment at
`issue 744 <https://github.com/LonamiWebs/Telethon/issues/744>`_
so it can be included in the next revision of the documentation!
.. _projects-telegram-export:
telethon_examples/
==================
`telethon_examples <https://github.com/LonamiWebs/Telethon/tree/master/telethon_examples>`_ /
`LonamiWebs' site <https://lonamiwebs.github.io>`_
This documentation is not the only place where you can find useful code
snippets using the library. The main repository also has a folder with
some cool examples (even a Tkinter GUI!) which you can download, edit
and run to learn and play with them.
telegram-export
===============
`telegram-export <https://github.com/expectocode/telegram-export>`_ /
`expectocode's GitHub <https://github.com/expectocode>`_
A tool to download Telegram data (users, chats, messages, and media)
into a database (and display the saved data).
.. _projects-mautrix-telegram:
mautrix-telegram
================
`mautrix-telegram <https://github.com/tulir/mautrix-telegram>`_ /
`maunium's site <https://maunium.net/>`_
A Matrix-Telegram hybrid puppeting/relaybot bridge.
.. _projects-telegramtui:
TelegramTUI
===========
`TelegramTUI <https://github.com/bad-day/TelegramTUI>`_ /
`bad-day's GitHub <https://github.com/bad-day>`_
A Telegram client on your terminal.
spotify_telegram_bio_updater
============================
`spotify_telegram_bio_updater <https://github.com/Poolitzer/spotify_telegram_bio_updater>`_ /
`pooltalks' Telegram <https://t.me/pooltalks>`_
Small project that updates the biography of a telegram user according
to their current Spotify playback, or revert it if no playback is active.

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=====
Users
=====
.. note::
These examples assume you have read :ref:`full-api`.
.. contents::
Retrieving full information
===========================
If you need to retrieve the bio, biography or about information for a user
you should use :tl:`GetFullUser`:
.. code-block:: python
from telethon.tl.functions.users import GetFullUserRequest
full = client(GetFullUserRequest(user))
# or even
full = client(GetFullUserRequest('username'))
bio = full.about
See :tl:`UserFull` to know what other fields you can access.
Updating your name and/or bio
=============================
The first name, last name and bio (about) can all be changed with the same
request. Omitted fields won't change after invoking :tl:`UpdateProfile`:
.. code-block:: python
from telethon.tl.functions.account import UpdateProfileRequest
client(UpdateProfileRequest(
about='This is a test from Telethon'
))
Updating your username
======================
You need to use :tl:`account.UpdateUsername`:
.. code-block:: python
from telethon.tl.functions.account import UpdateUsernameRequest
client(UpdateUsernameRequest('new_username'))
Updating your profile photo
===========================
The easiest way is to upload a new file and use that as the profile photo
through :tl:`UploadProfilePhoto`:
.. code-block:: python
from telethon.tl.functions.photos import UploadProfilePhotoRequest
client(UploadProfilePhotoRequest(
client.upload_file('/path/to/some/file')
)))

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=================
A Word of Warning
=================
Full API is **not** how you are intended to use the library. You **should**
always prefer the :ref:`client-ref`. However, not everything is implemented
as a friendly method, so full API is your last resort.
If you select a method in :ref:`client-ref`, you will most likely find an
example for that method. This is how you are intended to use the library.
Full API **will** break between different minor versions of the library,
since Telegram changes very often. The friendly methods will be kept
compatible between major versions.
If you need to see real-world examples, please refer to :ref:`telethon_projects`.

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=====================
Working with messages
=====================
.. note::
These examples assume you have read :ref:`full-api`.
.. contents::
Sending stickers
================
Stickers are nothing else than ``files``, and when you successfully retrieve
the stickers for a certain sticker set, all you will have are ``handles`` to
these files. Remember, the files Telegram holds on their servers can be
referenced through this pair of ID/hash (unique per user), and you need to
use this handle when sending a "document" message. This working example will
send yourself the very first sticker you have:
.. code-block:: python
# Get all the sticker sets this user has
from telethon.tl.functions.messages import GetAllStickersRequest
sticker_sets = client(GetAllStickersRequest(0))
# Choose a sticker set
from telethon.tl.functions.messages import GetStickerSetRequest
from telethon.tl.types import InputStickerSetID
sticker_set = sticker_sets.sets[0]
# Get the stickers for this sticker set
stickers = client(GetStickerSetRequest(
stickerset=InputStickerSetID(
id=sticker_set.id, access_hash=sticker_set.access_hash
)
))
# Stickers are nothing more than files, so send that
client.send_file('me', stickers.documents[0])
.. _issues: https://github.com/LonamiWebs/Telethon/issues/215