#Alepha - Cache

#Installation

Part of the alepha package. Import from alepha/cache.

npm install alepha

#Overview

Type-safe caching with TTL support.

Features:

• Cached computations with type-safe keys and values
• Configurable TTL
• Cache invalidation
• Automatic cache population
• Providers: Redis when REDIS_URL is set, Memory otherwise (Node, Bun), Cloudflare (workerd), Database (per $cache)

Set REDIS_URL and every instance shares one cache; leave it unset and the cache is this process's memory. An app's own CacheProvider substitution wins over both.

#API Reference

#Primitives

• $cache - Creates a cache primitive for caching with automatic management.

#Providers

• CacheProvider - Cache provider interface.
• CloudflareCacheProvider - Cloudflare cache provider: the database cache when the app has one, else KV.
• CloudflareKVProvider - Cloudflare KV cache provider.
• MemoryCacheProvider - In-memory implementation of CacheProvider for testing.
• RedisCacheProvider - Cache entries in Redis.