@yokejs/core-cache NPM

Yoke.js Cache

Yoke.js Cache is a simple Node.js cache manager.

It currently supports Redis and Filesystem and provides a uniform API across cache drivers. Memcache and database drivers will be supported in the future.

Installation

$ yarn add "@yokejs/core-cache" or $ npm install "@yokejs/core-cache"

Current drivers

Filesystem
Redis

Peer Dependencies

Redis

https://github.com/NodeRedis/node-redis - "^3.0.2"

Usage

Initialising the cache

Redis

import Cache, {RedisCache} from '@yokejs/core-cache'

// Create the redis client
const client = redis.createClient()

const cache = Cache(RedisCache({ client }))

// Perform operations

client.quit()

Filesystem

import Cache, {FileSystemCache} from '@yokejs/core-cache'

// Define an absolute path to store the cache files
const directory = path.resolve(__dirname, './cache')

const cache = Cache(FileSystemCache({ directory }))

Storing an item in the cache

// Store an item in the cache forever
await cache.set('my:cache:key', 'my cache value')

// Store an item in the cache for 2 seconds
await cache.set('my:cache:key', 'my cache value', 2000)

Retrieving an item from the cache

const value = await cache.get('my:cache:key')

Removing an item from the cache

await cache.delete('my:cache:key')

Removing all items from the cache

await cache.flush()

Increasing and decreasing values in the cache

// Increase and return a cache value by 1
const newValue = await cache.increment('my:cache:key')

// Increase and return a cache value by 99
const newValue = await cache.increment('my:cache:key', 99)

// Decrease and return a cache value by 1
const newValue = await cache.decrement('my:cache:key')

// Decrease and return a cache value by 99
const newValue = await cache.decrement('my:cache:key', 99)