cachu

cachu

Simple, minimalistic key-value cache, created by Azury.

Why use it?

• fully asynchronous
• small n' easy
• zero dependencies

Installation

Install the package using your favorite manager.

npm i cachu
yarn add cachu

Create a basic cache instance.

import cachu from 'cachu'

const cache = new cachu({
  max: 10, // cache can contain up to 10 items
  maxAge: 60 // delete each item after 1 minute
})

async function demo() {
  await cache.setKey('some key', 'hello world')
}

demo()

Configuration

• maxAge to set the maximum age for each item in the cache
  👉 900 (seconds) by default
  
  
• max to set the maximum size for the store
  👉 Infinity by default
  
  
• maxLength to set the maximum length for each item
  👉 Infinity by default (affects only strings)

Features

• setKey(key, value) to set a new item (will return either true or false)
  👉 key can be anything, nevertheless it should be unique
  👉 value can be of any type, doesn't have to be unique
  
  
• getKey(key) to get a item
  👉 will return the value of the item or null if it doesn't exist
  
  
• updateKey(key, value) to update a key (will return either true or false)
  👉 key has to exist, in case it doesn't it'll return false
  👉 value can be of any type, doesn't have to be unique
  
  
• stealKey(key) to get a item without modifying anything
  👉 will return the value of the item or null if it doesn't exist
  
  
• hasKey(key) to check if a key exists
  👉 will return either true or false
  
  
• hasValue(value) to check if any item has a specific value
  👉 will return either true or false
  
  
• deleteKey(key) to delete a key
  👉 will return either true or false
  
  
• purge() to reset the cache