Memories
Chat memory components store and retrieve chat messages by session_id.
AstraDBChatMemory Component
This component creates an AstraDBChatMessageHistory instance, which allows for storing and retrieving chat messages using Astra DB, a cloud-native database service.
Parameters
Inputs
| Name |
Type |
Description |
| collection_name |
String |
Name of the Astra DB collection for storing messages. Required. |
| token |
SecretString |
Authentication token for Astra DB access. Required. |
| api_endpoint |
SecretString |
API endpoint URL for the Astra DB service. Required. |
| namespace |
String |
Optional namespace within Astra DB for the collection. |
| session_id |
MessageText |
Chat session ID. Uses current session ID if not provided. |
Outputs
| Name |
Type |
Description |
| message_history |
BaseChatMessageHistory |
An instance of AstraDBChatMessageHistory for the session. |
CassandraChatMemory Component
This component creates a CassandraChatMessageHistory instance, enabling storage and retrieval of chat messages using Apache Cassandra or DataStax Astra DB.
Parameters
Inputs
| Name |
Type |
Description |
| database_ref |
MessageText |
Contact points for Cassandra or Astra DB database ID. Required. |
| username |
MessageText |
Username for Cassandra (leave empty for Astra DB). |
| token |
SecretString |
Password for Cassandra or token for Astra DB. Required. |
| keyspace |
MessageText |
Keyspace in Cassandra or namespace in Astra DB. Required. |
| table_name |
MessageText |
Name of the table or collection for storing messages. Required. |
| session_id |
MessageText |
Unique identifier for the chat session. Optional. |
| cluster_kwargs |
Dictionary |
Additional keyword arguments for Cassandra cluster configuration. Optional. |
Outputs
| Name |
Type |
Description |
| message_history |
BaseChatMessageHistory |
An instance of CassandraChatMessageHistory for the session. |
ZepChatMemory Component
This component creates a ZepChatMessageHistory instance, enabling storage and retrieval of chat messages using Zep, a memory server for Large Language Models (LLMs).
Parameters
Inputs
| Name |
Type |
Description |
| url |
MessageText |
URL of the Zep instance. Required. |
| api_key |
SecretString |
API Key for authentication with the Zep instance. |
| api_base_path |
Dropdown |
API version to use. Options: "api/v1" or "api/v2". |
| session_id |
MessageText |
Unique identifier for the chat session. Optional. |
Outputs
| Name |
Type |
Description |
| message_history |
BaseChatMessageHistory |
An instance of ZepChatMessageHistory for the session. |
