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@jysperu/load-cache

v1.0.0

Published

Cache manager with memory and Redis providers, plus fallback support.

Readme

@jysperu/load-cache

Libreria de cache para Node.js con proveedor en memoria, proveedor Redis, soporte de TTL/tags y fallback automatico cuando falla el proveedor primario.

Caracteristicas

  • API asincrona unificada: get, set, has, del, clear, invalidateTag.
  • Proveedor en memoria sin dependencias externas.
  • Proveedor Redis con soporte de TTL, tags y limpieza de indices por etiquetas.
  • Fallback automatico entre proveedores por errores de conexion.
  • Build de libreria con Vite en formato ESM + CJS + tipos TypeScript.

Instalacion

npm install @jysperu/load-cache

API Publica

import cacheManager, {
  CacheManager,
  CacheEntity,
  MemoryCacheProvider,
  RedisCacheProvider,
} from "@jysperu/load-cache";

Tambien se exportan utilidades: serializeValue, deserializeValue, normalizeTTL, normalizeTags.

Uso Basico

import { CacheManager, RedisCacheProvider, MemoryCacheProvider } from "@jysperu/load-cache";

const manager = new CacheManager({
  env: {
    CACHE_PREFIX: "app:",
    CACHE_PROVIDER: "redis",
  },
});

manager.registerProvider(
  "redis",
  new RedisCacheProvider({
    prefix: "app:",
    client: RedisCacheProvider.buildClient({ url: "redis://127.0.0.1:6379" }),
  }),
  1,
);

manager.registerProvider("memory", new MemoryCacheProvider({ prefix: "app:" }), 9999);

await manager.connect();
await manager.set("user:1", { id: 1, name: "Ana" });

const user = await manager.get("user:1");

Cache Miss Con Factory

const report = await manager.get("report:daily", async (entity) => {
  entity.setTTL(60);
  entity.setTags(["reports", "daily"]);
  return buildDailyReport();
});

Variables De Entorno Soportadas

  • CACHE_PROVIDER: redis o memory.
  • CACHE_PREFIX: prefijo global para claves.
  • CACHE_TTL: TTL por defecto en segundos.
  • CACHE_REDIS_URL: URL completa de Redis.
  • CACHE_REDIS_HOST: host de Redis.
  • CACHE_REDIS_PORT: puerto Redis.
  • CACHE_REDIS_DB: indice de base de datos Redis.
  • CACHE_REDIS_KEY_SEPARATOR: separador para metadatos internos.
  • CACHE_REDIS_MAX_CONNECTION_ERRORS: maximo de errores de conexion antes de bloquear intentos.

Scripts

npm test
npm run test:integration
npm run build

Para ejecutar el test de integracion Redis:

PowerShell:

$env:RUN_REDIS_INTEGRATION="1"
$env:CACHE_REDIS_URL="redis://127.0.0.1:6379"
npm run test:integration

Artefactos De Build

  • dist/cacheManager.esm.js
  • dist/cacheManager.cjs.js
  • dist/cacheManager.d.ts

Licencia

MIT