langchain.memory.chat_message_histories.file.FileChatMessageHistory

class langchain.memory.chat_message_histories.file.FileChatMessageHistory(file_path: str)[source]

Chat message history that stores history in a local file.

Parameters

file_path – path of the local file to store the messages.

Attributes

messages

Retrieve the messages from the local file

Methods

__init__(file_path)

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 the local file

add_user_message(message)

Convenience method for adding a human message string to the store.

clear()

Clear session memory from the local file

__init__(file_path: str)[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 the local file

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 the local file

Examples using FileChatMessageHistory