caching

Read-through caching in a .NET web API is implemented using HybridCache to serve frequently requested data from faster storage. It provides built-in L1/L2 layering and stampede protection to reduce slow repeated reads and lower database load.

Cache invalidation on mutation is the best way to keep cached data accurate in a .NET service. You remove or evict cached entries when data changes so users see fresh results, paired with explicit TTLs for automatic expiration.

HybridCache protects against cache stampedes in high-traffic .NET applications by providing built-in stampede protection. It serializes concurrent requests for the same cache key, preventing multiple requests from simultaneously hitting the slow data store.

You can cache full HTTP responses in a .NET web API using output caching policies and tags. This approach caches entire responses for static or public endpoints and uses tags for targeted eviction when underlying data changes.

You should use HybridCache over manual IDistributedCache for cache-aside patterns in .NET. Prefer HybridCache for new development unless you are specifically integrating with existing distributed cache code that requires manual management.

You should avoid caching mutating operations in your .NET application to prevent serving stale or incorrect data. Safe caching patterns require explicit TTLs and only apply to read-heavy scenarios, ensuring data accuracy through proper invalidation.