Class FirestoreChatMessageHistory

Class for managing chat message history using Google's Firestore as a storage backend. Extends the BaseListChatMessageHistory class.

Example

const chatHistory = new FirestoreChatMessageHistory({
  collectionName: "langchain",
  sessionId: "lc-example",
  userId: "a@example.com",
  config: { projectId: "your-project-id" },
});

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

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