Knouds API rate limits and back-off strategies

X-RateLimit-Limit: 100
X-RateLimit-Remaining: 87
X-RateLimit-Reset: 1714512000

curl -i https://knouds.ai/api/workflows/my-pipeline/run \
  -H "x-api-key: $KNOUDS_KEY" \
  -H "Content-Type: application/json" \
  -d '{"inputs":{}}' | grep -i 'ratelimit\|retry-after'

{
  "error": "Rate limit exceeded",
  "code": "RATE_LIMIT_EXCEEDED",
  "tier": "pro",
  "limit": 100,
  "retryAfter": 12
}

Retry-After: 12
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 1714512012

async function runWithBackoff(slug, inputs) {
  const response = await fetch(
    `https://knouds.ai/api/workflows/${slug}/run`,
    {
      method: 'POST',
      headers: {
        'x-api-key': process.env.KNOUDS_KEY,
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({ inputs }),
    }
  );

  if (response.status === 429) {
    const retryAfter = parseInt(response.headers.get('Retry-After') || '10', 10);
    await new Promise((resolve) => setTimeout(resolve, retryAfter * 1000));
    return runWithBackoff(slug, inputs);
  }

  const remaining = parseInt(response.headers.get('X-RateLimit-Remaining') || '999', 10);
  if (remaining < 5) {
    const reset = parseInt(response.headers.get('X-RateLimit-Reset') || '0', 10);
    const waitMs = Math.max(0, reset * 1000 - Date.now());
    await new Promise((resolve) => setTimeout(resolve, waitMs));
  }

  return response.json();
}