export async function getJson(url, { signal } = {}) {
  const response = await fetch(url, {
    headers: { Accept: 'application/json' },
    signal,
  });
  if (!response.ok) {
    const message = await response.text().catch(() => '');
    throw new Error(`HTTP ${response.status}: ${message.slice(0, 120)}`);
  }
  return response.json();
}

const controller = new AbortController();
setTimeout(() => controller.abort(), 5000);
getJson('/api/health', { signal: controller.signal }).then(console.log).catch(console.error);