Chain Adapter Laravel Package

Product Decisions This Supports

• Multi-layer caching strategy: Enables a fallback caching hierarchy (e.g., in-memory → Redis → database) to optimize performance and reliability. Reduces latency by prioritizing faster caches while ensuring data availability via slower backups.
• Tag-based cache invalidation: Simplifies cache invalidation for tagged items (e.g., user profiles, product categories) without manual key management, improving maintainability.
• Build vs. buy: Avoids reinventing a caching chain solution, leveraging a battle-tested PSR-6-compliant package to accelerate development.
• Use cases:
  • High-traffic APIs where cache layers reduce database load.
  • Systems requiring granular cache invalidation (e.g., e-commerce, CMS).
  • Microservices needing consistent caching across services.

When to Consider This Package

• Adopt when:

  • Your system uses PSR-6 caches (e.g., Redis, APC, Doctrine Cache) and needs a fallback chain (e.g., "try Redis, then fall back to database").
  • You require tag-based invalidation to simplify cache management for dynamic data.
  • You prioritize low-code integration with existing PSR-6 pools (no custom logic needed).
  • Your team lacks bandwidth to build/maintain a custom caching layer.

• Look elsewhere if:

  • You need active development (last release: 2022; consider alternatives like spatie/laravel-cache for Laravel-specific features).
  • Your use case demands advanced features (e.g., cache warming, analytics) not covered by PSR-6.
  • You’re using non-PSR-6 caches (e.g., Memcached without a PSR-6 adapter).
  • You require enterprise support (this is community-driven).

How to Pitch It (Stakeholders)

For Executives: "This package lets us implement a smart caching chain (e.g., Redis → database) with minimal code, reducing latency and database load. It’s like having a backup generator for your cache—if one layer fails, the system gracefully falls back to another. For example, if Redis crashes, the app still serves cached data from APC or the database. This improves reliability without hiring engineers to build it from scratch."

For Engineering: *"The CachePoolChain is a PSR-6-compliant adapter that chains multiple cache pools (e.g., Redis + APC) with fallback logic. Key benefits:

• Zero config: Just pass an array of pools to CachePoolChain.
• Tag support: Invalidate caches by tags (e.g., user:123) instead of keys.
• Resilience: Skip failed pools (skip_on_failure) or throw exceptions (PoolFailedException).
• Laravel-friendly: Works with existing PSR-6 caches (e.g., predis/redis, symfony/cache).* Tradeoff: Last updated in 2022, but stable and well-documented. For active development, we might pair it with Laravel’s cache system."*