Prefixed Cache Laravel Package

Product Decisions This Supports

• Multi-tenancy architecture: Enables clean isolation of cached data across tenants by automatically prefixing keys (e.g., tenant_1:user_123 vs. tenant_2:user_123), reducing risk of cross-tenant data leaks or cache pollution. Aligns with Laravel’s multi-tenant patterns (e.g., tenant() helper, HasTenants trait).
• Modular caching strategy: Supports feature flags, microservices, or modular monoliths by scoping cache keys to logical namespaces (e.g., feature_new_ui:, service_payment:). Reduces merge conflicts and simplifies cache invalidation during deployments.
• Cost optimization: Justifies shared caching infrastructure (e.g., single Redis cluster for multiple Laravel apps) by preventing key collisions, which would otherwise force per-app cache instances—reducing operational overhead and cloud costs.
• Legacy system modernization: Accelerates migration to PSR-6 caching in monolithic apps by wrapping existing non-PSR-6 caches (e.g., raw Redis) with a decorator, without rewriting cache logic. Example: Gradually replace Redis::get() calls with Cache::remember() while isolating keys.
• Roadmap for advanced caching: Provides a foundation to later adopt PHP-Cache’s tagging or hierarchy features (e.g., php-cache/tagging-cache) if the team needs fine-grained cache invalidation or organization.
• Build vs. buy decision: Avoids reinventing a simple decorator pattern, saving ~50 lines of custom code. The MIT license and PSR-6 compliance reduce vendor lock-in compared to proprietary solutions.

When to Consider This Package

• Adopt if:
  • Your Laravel app uses shared caching backends (e.g., Redis, Memcached) across tenants, services, or environments, and key collisions are a risk.
  • You need zero-boilerplate namespace isolation for caches without modifying application code (e.g., for third-party packages or legacy systems).
  • Your team prioritizes simplicity over maintenance: The package is a drop-in decorator with no dependencies beyond PSR-6.
  • You’re already using PSR-6 caches (e.g., Laravel’s redis driver with php-cache/redis-cache) or planning to migrate.
• Look elsewhere if:
  • Your caching needs active development/maintenance: The package’s last release was in 2022, with no recent commits or dependents. Consider forking or using alternatives like spatie/laravel-cache-prefix (Laravel-specific) or cachetools/core (more actively maintained).
  • You require complex caching features: Tagging, hierarchy, or event listeners (this package only handles prefixing).
  • Your app uses non-PSR-6 caches (e.g., raw Redis without a pool). Use Laravel’s built-in Cache::prefix() or a custom wrapper instead.
  • Performance is critical: While the decorator adds minimal overhead, benchmark with your stack—especially for high-throughput caches (e.g., queue payloads).
  • You need enterprise support: The MIT license and lack of commercial backing may not meet compliance requirements for some organizations.

How to Pitch It (Stakeholders)

For Executives: "This package lets us safely share a single caching layer (e.g., Redis) across multiple Laravel apps, tenants, or microservices without risking data leaks or cache pollution. For example, we could prefix tenant_1:api: and tenant_2:api: to isolate cache invalidations during rollouts—saving costs on dedicated cache instances while reducing operational complexity. It’s a $0, low-risk solution with no code changes required beyond wrapping our existing PSR-6 cache pools. The trade-off? Minimal maintenance effort, as the package is stable but no longer actively developed."

For Engineers: *"The PrefixedCachePool wraps any PSR-6 cache (e.g., Redis, Memcached) and prepends a namespace to all keys. Use cases:

• Multi-tenancy: Isolate tenant-specific caches (e.g., tenant_1:user_123).
• Feature flags: Scope experimental features (e.g., feature_new_ui:cache).
• Shared infrastructure: Reuse a single Redis cluster across Laravel apps without collisions.

How to use it in Laravel:

1. Install:

   composer require cache/prefixed-cache php-cache/redis-cache
   

2. Wrap your PSR-6 pool:

   $redisPool = new RedisCachePool(new Redis());
   $prefixedPool = new PrefixedCachePool($redisPool, 'tenant_1_');
   

3. Integrate with Laravel’s cache manager (see integration notes for details).

Pros:

• Zero dependencies, PSR-6 compliant, ~50 LOC.
• No breaking changes to existing cache logic.

Cons:

• Last release in 2022 (but stable for read-only use).
• Requires manual integration with Laravel (or a wrapper package like spatie/laravel-cache-prefix).

Recommendation: Start with a proof of concept for a non-critical cache store (e.g., sessions) and monitor performance. If maintenance becomes an issue, fork the package or switch to cachetools/core."*