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]¶

Bases: BaseChatMessageHistory

Chat message history stored in a Redis database.

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

Attributes

key

Construct the record key to use

messages

Retrieve the messages from Redis
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

property key: str¶

Construct the record key to use

property messages: List[langchain.schema.messages.BaseMessage]¶

Retrieve the messages from Redis

Examples using RedisChatMessageHistory¶