Class CassandraChatMessageHistory

Class for storing chat message history within Cassandra. It extends the BaseListChatMessageHistory class and provides methods to get, add, and clear messages.

Example

const chatHistory = new CassandraChatMessageHistory({
  cloud: {
    secureConnectBundle: "<path to your secure bundle>",
  },
  credentials: {
    username: "token",
    password: "<your Cassandra access token>",
  },
  keyspace: "langchain",
  table: "message_history",
  sessionId: "<some unique session identifier>",
});

const chain = new ConversationChain({
  llm: new ChatOpenAI(),
  memory: chatHistory,
});

const response = await chain.invoke({
  input: "What did I just say my name was?",
});
console.log({ response });
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