Api Response Optimization

Solid fundamentals for making your API responses lighter and faster. You get sparse fieldsets so clients can request only the fields they need, ETag-based caching to avoid sending unchanged data, and compression middleware setup. The performance targets are ambitious but realistic: sub-100ms responses, payloads under 50KB, and significantly reduced CPU usage. The checklist covers the usual suspects like pagination and N+1 prevention. Nothing groundbreaking here, just the standard optimizations you should be doing anyway but probably aren't. Good reference if you're debugging slow endpoints or getting complaints about mobile data usage.