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47 lines
1.9 KiB
ReStructuredText
47 lines
1.9 KiB
ReStructuredText
.. _sessions:
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==============
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Session Files
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==============
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The first parameter you pass the the constructor of the ``TelegramClient`` is
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the ``session``, and defaults to be the session name (or full path). That is,
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if you create a ``TelegramClient('anon')`` instance and connect, an
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``anon.session`` file will be created on the working directory.
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These database files using ``sqlite3`` contain the required information to
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talk to the Telegram servers, such as to which IP the client should connect,
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port, authorization key so that messages can be encrypted, and so on.
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These files will by default also save all the input entities that you've seen,
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so that you can get information about an user or channel by just their ID.
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Telegram will **not** send their ``access_hash`` required to retrieve more
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information about them, if it thinks you have already seem them. For this
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reason, the library needs to store this information offline.
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The library will by default too save all the entities (chats and channels
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with their name and username, and users with the phone too) in the session
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file, so that you can quickly access them by username or phone number.
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If you're not going to work with updates, or don't need to cache the
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``access_hash`` associated with the entities' ID, you can disable this
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by setting ``client.session.save_entities = False``, or pass it as a
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parameter to the ``TelegramClient``.
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If you don't want to save the files as a database, you can also create
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your custom ``Session`` subclass and override the ``.save()`` and ``.load()``
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methods. For example, you could save it on a database:
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.. code-block:: python
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class DatabaseSession(Session):
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def save():
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# serialize relevant data to the database
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def load():
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# load relevant data to the database
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You should read the ````session.py```` source file to know what "relevant
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data" you need to keep track of.
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