How to feed chat history?

[o1Suleyman]

Let's say I have the chat history for a particular chat stored in a database and retrieve it, how exactly would the history then be forwarded to the model?

[patelvivekdev]

If you use useChat, you can fetch the messages from the db and pass them on as arguments.

import { useChat } from 'ai/react';

// fetch the initial messages from db.

const { messages } = useChat({
    id,
    initialMessages,
  });

In API, you can get messages from req

export async function POST(req: Request) {
  const { messages } = await req.json();
  const result = streamText({
     model: openai('gpt-4-turbo'),
     messages,
   })
}

Read more at https://sdk.vercel.ai/examples/next/state-management/restore-messages