flyingsquirrel0419/layercache

v2.1.0 Feature

This release adds 4 notable features for engineering teams evaluating rollout.

Published 2mo Caching

✓ No known CVEs patched

✓ No known CVEs patched in this version

Topics

cache-manager cache memory-cache multi-layer-cache nodejs redis

+2 more

stampede-prevention typescript

Summary

AI summary

Added exact-key invalidation, stale‑preserving expiration APIs with TypeScript JSDoc.

Full changelog

Added exact-key invalidation aliases: invalidateByKey() and invalidateByKeys(), mirroring delete() and mdelete() while matching the invalidateBy* API family.
Added exact-key stale-preserving expiration: expireByKey() and expireByKeys(), allowing specific keys to be marked stale without deleting their stale-while-revalidate / stale-if-error windows.
Added namespace exact-key APIs so CacheNamespace exposes the same exact-key invalidation and expiration helpers with namespace-scoped keys.
Added public TypeScript JSDoc descriptions across methods, options, metrics, layers, serializers, integrations, and helpers.

Bumped the package version from 2.0.0 to 2.1.0.
Updated docs-web package metadata and the landing page version badge to 2.1.0.
Updated API documentation for exact-key invalidation aliases and stale-preserving expiration methods.
Updated the docs playground to support and demonstrate the latest exact-key syntax.
Refreshed the docs playground UI with clearer theme behavior, visible controls, copy fallback behavior, and a clearer editor/result layout.

Fixed the playground stale-while-revalidate examples so they use millisecond TTL options and demonstrate stale serving during background refresh before showing the refreshed value.
Fixed light-mode playground controls and result panels readability after the docs UI refresh.

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About flyingsquirrel0419/layercache

v4.0.0 Write coordination applies finite default limits and can reject saturated work with CacheWriteSaturationError.
v4.0.0 Automatically derived structured `wrap()` keys now use the `j2:` schema; old `j:` entries become cold misses and expire naturally.
v4.0.0 Read-through fetchers now cache null as a regular value by default; `getOrThrow()` returns stored nulls while throwing only for undefined.
v4.0.0 Public CacheStack reads now return undefined for misses and negative-cache entries instead of null.