optimizationIntermediate9 min

Caching Strategies

Optimize performance and reduce costs

Implement effective caching strategies to improve response times, reduce API calls, and lower costs while maintaining data accuracy.

APPLIES TO:JANUS CHIRON ATLAS PLUTUS DELPHI DAEDALUS

01

Cache-Control Headers

Olympus responses include Cache-Control headers indicating recommended caching durations for each endpoint.

02

TTL Recommendations

Different data types require different TTLs. Entity status: 24h. License checks: 6h. Tax rates: 24h. Demographics: 30d. SEC filings: 1h for recent, indefinite for historical.

03

Multi-Layer Caching

Implement caching at multiple layers: CDN for public data, application cache for authenticated data, database for persistent storage.

typescript

class="text-pink-400">import { Redis } class="text-pink-400">from class="text-emerald-class="text-amber-400">400">'ioredis';

class="text-pink-400">const redis = class="text-pink-400">new Redis();
class="text-pink-400">const TTL = {
  entityStatus: class="text-amber-400">86400,    class="text-white/class="text-amber-400">30 italic">// class="text-amber-400">24 hours
  licenseCheck: class="text-amber-400">21600,    class="text-white/class="text-amber-400">30 italic">// class="text-amber-400">6 hours
  taxRates: class="text-amber-400">86400,        class="text-white/class="text-amber-400">30 italic">// class="text-amber-400">24 hours
  demographics: class="text-amber-400">2592000,  class="text-white/class="text-amber-400">30 italic">// class="text-amber-400">30 days
};

class="text-pink-400">async class="text-pink-400">function getCached<T>(
  key: string,
  fetcher: () => Promise<T>,
  ttl: number
): Promise<T> {
  class="text-pink-400">const cached = class="text-pink-400">await redis.get(key);
  class="text-pink-400">if (cached) class="text-pink-400">return JSON.parse(cached);

  class="text-pink-400">const data = class="text-pink-400">await fetcher();
  class="text-pink-400">await redis.setex(key, ttl, JSON.stringify(data));
  class="text-pink-400">return data;
}