Middleware

Dependency note: This skill builds on ai-core. Read it first for critical rules.

Setup — Analytics Tracking Middleware

import { chat, toServerSentEventsResponse } from '@tanstack/ai'
import { openaiText } from '@tanstack/ai-openai'
import { trackAnalytics, reportError } from './analytics'

export async function POST(request: Request) {
  const { messages } = await request.json()