RedisChatMessageHistory

RedisChatMessageHistory(
  self,
  session_id: str,
  url: str = 'redis://localhost:6379/0',
  key_prefix: str

Bases

BaseChatMessageHistory

Name	Type	Description
`session_id`*	`str`	str The ID for single chat session. Used to form keys with `key_prefix`.
`url`	`str`	Default:`'redis://localhost:6379/0'` Optional[str] String parameter configuration for connecting to the redis.
`key_prefix`	`str`	Default:`'message_store:'` Optional[str] The prefix of the key, combined with `session id` to form the key.
`ttl`	`Optional[int]`	Default:`None`

Setup:

Install redis python package.

.. code-block:: bash

pip install redis

Instantiate:

.. code-block:: python

from langchain_community.chat_message_histories import RedisChatMessageHistory

history = RedisChatMessageHistory( session_id = "your-session-id", url="redis://your-host:your-port:your-database", # redis://localhost:6379/0 )

Add and retrieve messages:

.. code-block:: python

history.add_message(message)

history.add_messages([message1, message2, message3, ...])

history.add_user_message(human_message)

history.add_ai_message(ai_message)

messages = history.messages