Flysystem Cached Adapter Laravel Package

Product Decisions This Supports

• Performance Optimization for File Storage: Accelerate read-heavy applications (e.g., media galleries, document repositories) by caching metadata (e.g., file sizes, last modified timestamps) to reduce database/API calls to underlying storage (S3, local FS, etc.).
• Cost Efficiency: Reduce cloud storage API costs (e.g., AWS S3 GetObject calls) by minimizing redundant metadata fetches.
• Build vs. Buy: Avoid reinventing caching logic for Flysystem adapters; leverage a battle-tested, MIT-licensed solution with minimal maintenance overhead.
• Roadmap Alignment: Prioritize for projects with:
  • High-frequency file metadata reads (e.g., user uploads, CDNs).
  • Mixed storage backends (e.g., hybrid local/cloud).
  • Scalability constraints where latency matters (e.g., real-time dashboards).
• Use Cases:
  • Media libraries (e.g., thumbnails, metadata tags).
  • Document management systems (e.g., versioning, access logs).
  • E-commerce product catalogs (e.g., caching image dimensions).

When to Consider This Package

Adopt if:

• Your app uses Flysystem (e.g., league/flysystem-aws-s3, league/flysystem-local) and suffers from high metadata fetch latency.
• You need simple, decorator-based caching without complex setup (e.g., Redis for full caching).
• Your team lacks bandwidth to build a custom caching layer for file metadata.
• Metadata staleness is acceptable (e.g., cache TTLs of 5–30 minutes suffice for your use case).

Look elsewhere if:

• You require full file content caching (use league/flysystem-cache or a CDN instead).
• Your storage backend has strict consistency requirements (e.g., financial transactions).
• You’re using non-Flysystem storage (e.g., custom S3 SDK wrappers).
• The package’s last release (2018) is a blocker (evaluate maintenance risk; fork if needed).
• You need advanced caching strategies (e.g., write-through, multi-level caching).

How to Pitch It (Stakeholders)

For Executives: "This lightweight package cuts file metadata latency by caching responses (e.g., file sizes, timestamps) locally, reducing costly API calls to cloud storage. For example, a media-heavy app could see 30–50% fewer S3 requests, lowering costs and improving load times. It’s a 2-hour integration with zero ongoing maintenance—ideal for scaling storage-heavy features without hiring dev resources."

For Engineering: *"The CachedAdapter wraps any Flysystem adapter (e.g., S3, local FS) and caches metadata in memory or a simple store (e.g., league/flysystem-cached-adapter + symfony/cache). Key benefits:

• Zero refactoring: Decorates existing adapters.
• Configurable TTLs: Trade freshness for performance (default: 1 hour).
• Minimal dependencies: Only requires Flysystem and a cache backend (e.g., APCu, Redis). Tradeoff: Metadata staleness may not suit real-time sync needs. Pair with monitoring to validate impact on your workload."*

For Developers: *"Add this to your composer.json:

composer require league/flysystem-cached-adapter

Then wrap your adapter:

$adapter = new CachedAdapter(
    new AwsS3Adapter($config),
    new ApcuCache(), // or RedisCache, etc.
    3600 // TTL in seconds
);

Works with any Flysystem adapter. Test with phpunit to ensure TTLs align with your app’s needs."*