Rate Limits

async function requestWithBackoff(url, options, maxRetries = 3) {
  for (let i = 0; i < maxRetries; i++) {
    const response = await fetch(url, options);
    
    if (response.status !== 429) {
      return response;
    }
    
    const retryAfter = response.headers.get('Retry-After') || 60;
    await new Promise(r => setTimeout(r, retryAfter * 1000));
  }
  throw new Error('Max retries exceeded');
}

const CACHE_TTL = 60 * 60 * 1000; // 1 hour
const cache = new Map();

async function getPersonas() {
  const cached = cache.get('personas');
  if (cached && Date.now() - cached.timestamp < CACHE_TTL) {
    return cached.data;
  }
  
  const data = await fetchPersonas();
  cache.set('personas', { data, timestamp: Date.now() });
  return data;
}

// Good: One request
await createTopic(content, [persona1, persona2, persona3]);

// Bad: Three requests
await createTopic(content, [persona1]);
await createTopic(content, [persona2]);
await createTopic(content, [persona3]);

function trackRateLimit(response) {
  const remaining = response.headers.get('X-RateLimit-Remaining');
  const limit = response.headers.get('X-RateLimit-Limit');
  
  if (remaining < limit * 0.1) {
    console.warn(`Rate limit warning: ${remaining}/${limit} remaining`);
  }
}