idb-cache

idb-cache is a fast and simple cache library for JavaScript using IndexedDB.

IndexedDB is persistent storage, but idb-cache automatically destroys old files. Therefore, users do not have to worry about storage pressure due to garbage files.

Usage

Initialization

const idbc = new IDBCache('examplesDB', {
  size : 52428800, // Size limit (Default 50MB)
  count : 100, // Number of files limit (Default 100)
  defaultAge : 86400, // max-age when there is no setting (Default 1day)
});

Set cache

// Designate max-age
idbc.set('key1', 'value1'); // defaultAge cache
idbc.set('key2', 'value2', 604800); // 1week cache

// Supported type
idbc.set('key3', new ArrayBuffer(512)); // ArrayBuffer
idbc.set('key4', new Blob([new ArrayBuffer(1024)])); // Blob

Get cache

idbc.get('key1').then(function(value){
  console.log(value);
}).catch(function(){
  // Does not exist, expired or error
});

Target

idb-cache is focused on support of the following browsers.

• Chrome for Android
• iOS Safari (Support from v10)