BufferMemory

Stores all chat messages in memory, passing the full conversation history to the model on each invocation.

Syntax

langchain

new BufferMemory({ returnMessages: true, memoryKey: "chat_history" })

Example

langchain

import { BufferMemory } from "langchain/memory";
import { ConversationChain } from "langchain/chains";

const memory = new BufferMemory();
const chain = new ConversationChain({ llm: model, memory });

await chain.invoke({ input: "My name is Alice." });
const r = await chain.invoke({ input: "What is my name?" });
console.log(r.response); // "Your name is Alice."