langchain.memory.chat_message_histories.mongodb.MongoDBChatMessageHistory¶
class langchain.memory.chat_message_histories.mongodb.MongoDBChatMessageHistory(connection_string: str, session_id: str, database_name: str = 'chat_history', collection_name: str = 'message_store')[source]¶
Chat message history that stores history in MongoDB.
Parameters
connection_string – connection string to connect to MongoDB
session_id – arbitrary key that is used to store the messages
of a single chat session.
database_name – name of the database to use
collection_name – name of the collection to use
Attributes
messages
Retrieve the messages from MongoDB
Methods
__init__(connection_string, session_id[, ...])
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 MongoDB
add_user_message(message)
Convenience method for adding a human message string to the store.
clear()
Clear session memory from MongoDB
__init__(connection_string: str, session_id: str, database_name: str = 'chat_history', collection_name: str = 'message_store')[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 MongoDB
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 MongoDB
Examples using MongoDBChatMessageHistory¶
Mongodb Chat Message History