langchain.memory.chat_message_histories.redis.RedisChatMessageHistory¶
class langchain.memory.chat_message_histories.redis.RedisChatMessageHistory(session_id: str, url: str = 'redis://localhost:6379/0', key_prefix: str = 'message_store:', ttl: Optional[int] = None)[source]¶
Chat message history stored in a Redis database.
Attributes
key
Construct the record key to use
messages
Retrieve the messages from Redis
Methods
__init__(session_id[, url, key_prefix, ttl])
add_ai_message(message)
Convenience method for adding an AI message string to the store.
add_message(message)
Append the message to the record in Redis
add_user_message(message)
Convenience method for adding a human message string to the store.
clear()
Clear session memory from Redis
__init__(session_id: str, url: str = 'redis://localhost:6379/0', key_prefix: str = 'message_store:', ttl: Optional[int] = None)[source]¶
add_ai_message(message: str) → None¶
Convenience method for adding an AI message string to the store.
Parameters
message – The string contents of an AI message.
add_message(message: BaseMessage) → None[source]¶
Append the message to the record in Redis
add_user_message(message: str) → None¶
Convenience method for adding a human message string to the store.
Parameters
message – The string contents of a human message.
clear() → None[source]¶
Clear session memory from Redis
Examples using RedisChatMessageHistory¶
Redis Chat Message History
Message Memory in Agent backed by a database