Function fetch

examples/sandbox-cloudflare/src/server.ts:42–59

(request, env, ctx)

export default {
  async fetch(request, env, ctx) {
    // 1. Sandbox preview-port traffic is routed by hostname, so it gets first
    //    refusal on every request before any path-based routing.
    const proxied = await proxyToSandbox(request, env)
    if (proxied) return proxied

    // 2. The agent's own HTTP surface. `agent.worker` is built by the package's
    //    `createSandboxAgentWorker`, so its `fetch` is always present.
    const { pathname } = new URL(request.url)
    if (ownedByAgent(pathname) && agent.worker.fetch) {
      return agent.worker.fetch(request, env, ctx)
    }

    // 3. The TanStack Start app (UI + `/api/*` server routes). Start's handler
    //    takes the request (its 2nd arg is an SSR-context option, not the Worker
    //    env); bindings are read ambiently via the Cloudflare Vite plugin.
    return handler.fetch(request)
  },
} satisfies ExportedHandler<AppEnv>