storage-cachelib-js

JS Cache library that allows to store data and setup TTL. Also reflect cached data to some persinstent storage like localStorage and sessionStorage. Based on cachelib-js.

Usage:

const { StorageCacheService } = require('storage-cachelib-js');

const cacheService = new CacheService({
    id: 'test'
});

// add external storage config
cacheService.addExternalStorage({
    id: 'storage1',
    type: 'localStorage', // also available 'sessionStorage' and 'custom'
    // storage: {} - to provide custom storage with Web Storage interface
    interval: 10000, // will save data from cache to external storage in this interval
    intervalInOperations: 10, // will save data from cache to external storage
    // each 10th get/set/remove operation
});

// restore data from external storage
cacheService.restoreData({ id: 'storage1' });
// should be called after external storages are configured
// if no id provoided, then first added external storage will be used

// subscribe to service events (SET, GET, REMOVE)
cacheService.addListener(CacheService.events.SET, (event) => { /* response on SET event */ });

// set value to cache which will be non-actual after 10 sec
cacheService.set('key', { value: 'any value' }, { ttl: 10000 });

// get value
const result = cacheService.get('key');

// remove value
cacheService.remove('key');

// extract full data
const fullCacheData = cacheService.extract();

// preload data to service
cacheService.load(fullCacheData);