Class used to manage the memory of a chat session, including loading and saving the chat history, and clearing the memory when needed. It uses the ZepClient to interact with the Zep service for managing the chat session's memory.

const sessionId = randomUUID();
const zepURL = "http://your-zep-url";

// Initialize ZepMemory with session ID, base URL, and API key
const memory = new ZepMemory({
sessionId,
baseURL: zepURL,
apiKey: "change_this_key",
});

// Create a ChatOpenAI model instance with specific parameters
const model = new ChatOpenAI({
modelName: "gpt-3.5-turbo",
temperature: 0,
});

// Create a ConversationChain with the model and memory
const chain = new ConversationChain({ llm: model, memory });

// Example of calling the chain with an input
const res1 = await chain.call({ input: "Hi! I'm Jim." });
console.log({ res1 });

// Follow-up call to the chain to demonstrate memory usage
const res2 = await chain.call({ input: "What did I just say my name was?" });
console.log({ res2 });

// Output the session ID and the current state of memory
console.log("Session ID: ", sessionId);
console.log("Memory: ", await memory.loadMemoryVariables({}));

Hierarchy (view full)

Implements

Constructors

Properties

aiPrefix: string = "AI"
baseURL: string
chatHistory: BaseChatMessageHistory
humanPrefix: string = "Human"
inputKey?: string
memoryKey: string = "history"
outputKey?: string
returnMessages: boolean
sessionId: string
zepClientPromise: Promise<ZepClient>

Accessors

Methods