Function fetch

packages/bun/test/integrations/bunserver.test.ts:36–38

(_req)

  test('generates a transaction around a request', async () => {
    const server = Bun.serve({
      async fetch(_req) {
        return new Response('Bun!', { headers: new Headers({ 'x-custom': 'value' }) });
      },
      port,
    });
    await fetch(`http://localhost:${port}/users?id=123`);