import { google } from '@ai-sdk/google'; import { convertToModelMessages, streamText, UIMessage } from 'ai'; export const maxDuration = 30; export async function POST(req: Request) { const { messages }: { messages: UIMessage[] } = await req.json(); const prompt = convertToModelMessages(messages); const result = streamText({ model: google('gemini-2.0-flash'), prompt, }); return result.toUIMessageStreamResponse(); }