What is dekache?

dekache is a simple cache module written by DekitaRPG that allows you to easily get and set cache data.

License TLDR

MIT - Copyright (c) 2022 Dekita ([email protected]) [view license]

Documentation

https://dekita.github.io/dekache/

System Requirements

node.js

Author Information

email | website | twitter | github

How To Use This Module In Your Own Projects:

Assuming you already have a node.js project simply include the module in your desired file, create your cache container, and begin storing/fetching your data.

NOTE: each dekache instance creates an interval loop when created. this will keep your node.js application running.

Install dekache

npm i dekache

Require dekache

const Dekache = require('dekache');
// OR
import Dekache from 'dekache';

Create a cache container

const mycache = new Dekache({
    // name: 'some-cache-id'
    // type: 'force' OR 'renew'
    // mins: mins to cache items
    // freq: cache update freq
})

Get cache data

// get data from cache matching 'some-item-id'.
// if it doesnt exist, then the callback function
// will run to initialize the cache data. 
const r1 = await mycache.get('some-item-id', async()=>{
    return 1; // initial data
});
// now returns 1 (until cached item gets cleared) 
const r2 = await mycache.get('some-item-id', async()=>{
    return 999; // function never called
});

Full Example:

const Dekache = require('dekache');

const mycache = new Dekache({
    name:'you got any cache?', 
    mins: 0.1,
});

// listen for after cleared items
mycache.on('clear', (cache, stats) => {
    console.log(stats)
});

// listen for clearing each item
mycache.on('clear-item', (data, ikey) => {
    // ikey is the internal cache key for data..
    // use `mycache.key(id)` for any comparison checks 
    console.log('cleared-item:', data);
});

(async ()=>{
    const id = 'some-identifier';
    const r1 = await mycache.get(id, async() => 1);
    const r2 = await mycache.get(id, async() => 999);
    console.log(r1, r2, `is equal?: ${r1 === r2}`);
})();