Web Storage Manager

web-storage-manager is a web development utility for managing web storage to handle save, update and data purge. It has support for storage data encryption or just a simple storage data encoding. Check out the package in npm registery here.

Installation

npm i web-storage-manager --save

Imports

import { LocalStorage, SessionStorage, EncodedLocalStorage, EncodedSessionStorage } from 'web-storage-manager';

or using helper

import { createLocalStorage, createSessionStorage } from 'web-storage-manager';

// Options conforms to:
/*
interface Options {
    delimiter?: string,
    isEncoded: boolean
}
*/

// createLocalStorage(window, options)
const LocalStorage = createLocalStorage(window, { isEncoded: false });
const SessionStorage = createSessionStorage(window, { isEncoded: false });
const EncodedLocalStorage = createLocalStorage(window, { isEncoded: true });
const EncodedSessionStorage = createSessionStorage(window, { isEncoded: true });

or using the base class

import { WebStorage, EncodedWebStore } from 'web-storage-manager';

// both class has a constructor:
// constructor(storage: Storage, delimiter: string = '.')

const LocalStorage = new WebStorage(window.localStorage, delimiter);
const SessionStorage = new WebStorage(window.sessionStorage, delimiter);

const EncodedLocalStorage = new EncodedWebStore(window.localStorage, delimiter);
const EncodedSessionStorage = new EncodedWebStore(window.sessionStorage, delimiter);

Using Encrypted Web Store

import { Cryptor, CryptorDefaults, createEncryptedLocalStorage, createEncryptedSessionStorage } from 'web-storage-manager';

/*
const CryptorDefaults = {
    salt: 'salty',
    keyLength: 24,
    algorithm: 'aes-192-cbc',
    password: 'encrypted-web-storage-manager',
    byteLength: 16 // Buffer
};
*/
const cryptor = new Cryptor(CryptorDefaults, null);

const EncryptedLocalStorage = createEncryptedLocalStorage(cryptor /* window, delimiter */);
const EncryptedSessionStorage = createEncryptedSessionStorage(cryptor /* window, delimiter */);

or using the base class

import { Cryptor, CryptorDefaults, EncryptedWebStore } from 'web-storage-manager';

/*
const CryptorDefaults = {
    salt: 'salty',
    keyLength: 24,
    algorithm: 'aes-192-cbc',
    password: 'encrypted-web-storage-manager',
    byteLength: 16 // Buffer
};
*/
const cryptor = new Cryptor(CryptorDefaults, null);
const WebStorage = new EncryptedWebStore(window.localStorage, cryptor);

NOTES: make sure to save the value from cryptor.ivHex to somewhere safe for later decryption usage.

import { Cryptor, CryptorDefaults, EncryptedWebStore } from 'web-storage-manager';

/*
const CryptorDefaults = {
    salt: 'salty',
    keyLength: 24,
    algorithm: 'aes-192-cbc',
    password: 'encrypted-web-storage-manager',
    byteLength: 16 // Buffer
};
*/
const oldVectorivHex = 'a17a97ab3...af31ae9';
const cryptor = new Cryptor(CryptorDefaults, oldVectorivHex);
const OldWebStorage = new EncryptedWebStore(window.localStorage, cryptor);

// then... use as normal
const result = OldWebStorage.getItem('npmjs-encrypted');
// expected result: encrypted-web-storage-manager

Usage and Examples

Please refer to test files local.test.js and session.test.js for a complete sample and usage.

WebStorage.setItem('sampleKey', 'sampleValue');

const testObject = {
    nestedKey: {
        nestedKeyA: 'nestedKeyA-target-value',
        nestedKeyB: {
            nestedKeyC: { itemKey: 'itemKey-value', itemKey2: 'itemKey2-target-value' },
            nestedKeyD: [{ id: 'id1' }, { id: 'id2' }, { id: 'id3' }, { id: 'idz' }]
        }
    }
};

const isSuccess = WebStorage.setItem('testKey', testObject);
// expected result: true

const item2 = WebStorage.getItemInItem('testKey.nestedKey.nestedKeyA');
// expected result: nestedKeyA-target-value

const result = WebStorage.getItemInItem('testKey.nestedKey.nestedKeyB.nestedKeyC');
// expected result: { itemKey: 'itemKey-value', itemKey2: 'itemKey2-target-value' }

WebStorage.appendItemInItem('testKey.nestedKey.nestedKeyB.nestedKeyC', { appendItemInItemAKey: 'appendItemInItemA-target-appended-value' });
// expected result: { itemKey: 'itemKey-value', itemKey2: 'itemKey2-target-value', appendItemInItemAKey: 'appendItemInItemA-target-appended-value' }

WebStorage.appendItemInItem('testKey.nestedKey.nestedKeyB.nestedKeyD', { id: 'id4', value: 'appendItemInItemB-target-appended-value' });
// expected result: [{ id: 'id1' }, { id: 'id2' }, { id: 'id3' }, { id: 'idz' }, { id: 'id4', value: 'appendItemInItemB-target-appended-value' }]

WebStorage.updateItemInItem('testKey.nestedKey.nestedKeyB.nestedKeyD', { name: 'id', value: 'id4' }, { id: 'id4', value: 'appendItemInItemB-target-appended-updated-value' });
// expected result: [{ id: 'id1' }, { id: 'id2' }, { id: 'id3' }, { id: 'idz' }, { id: 'id4', value: 'appendItemInItemB-target-appended-updated-value' }]

const result = WebStorage.getItemInItem('testKey.nestedKey.nestedKeyB.nestedKeyC', { name: 'appendItemInItemAKey' });
// expected result: appendItemInItemA-target-appended-value

const result = WebStorage.getItemInItem('testKey.nestedKey.nestedKeyB.nestedKeyD', { name: 'id', value: 'id4' });
// expected result: { id: 'id4', value: 'appendItemInItemB-target-appended-updated-value' }

WebStorage.removeItemInItem('testKey.nestedKey.nestedKeyB.nestedKeyC', { name: 'itemKey2' });
// expected result: { itemKey: 'itemKey-value', appendItemInItemAKey: 'appendItemInItemA-target-appended-value' }

Using EncryptedWebStore

Please refer to test files encrypted.test.js for a complete sample and usage.

const result = WebStorage.getEncryptedRawItem('testKey');
// expected result: 97efabdb...303df5b55

const isSuccess = WebStorage.setItem('testKey', result);
// expected result: true

Available Functions

key: ƒ key(n)
length: ƒ length()
setItem: ƒ setItem(key, value)
getItem: ƒ getItem(key)
clear: ƒ clear()
getItemInItem: ƒ getItemInItem(key, attrCompare)
getMultipleItems: ƒ getMultipleItems(keys)
appendItemInItem: ƒ appendItemInItem(key, value)
setMultipleItems: ƒ setMultipleItems(items)
updateItemInItem: ƒ updateItemInItem(key, attrCompare, newValue)
removeItem: ƒ removeItem(key)
removeItemInItem: ƒ removeItemInItem(key, attrCompare)
removeMultipleItems: ƒ removeMultipleItems(keys)

Using EncryptedWebStore

setEncryptedRawItem: ƒ setEncryptedRawItem(key)
getEncryptedRawItem: ƒ getEncryptedRawItem(key, value)

Unit Test

Web Storage API Unit Test Result

Encrypted Storage API Unit Test Result

Contribute

We would love for you to contribute to Web Storage Manager. See the LICENSE file for more info.

About

Web Storage Manager is a wrapper built on top of Storage API. This project has grown and had a major revamp in its version 3. And in its version 4, support for encrypted storage is added.

License

Web Storage Manager is available under the MIT license. See the LICENSE file for more info.