hello-world-addon

wakanda-storage

wakanda-storage provides an easy to use Node storage, shared between all your Node processes (as for Node cluster mode).

Be aware, wakanda-storage is shared between all Node processes. The storage memory is not freed until destroy() is called.

Installation

npm install wakanda-storage

Usage

let Storage = require('wakanda-storage');
let movies = Storage.create('movieStorage');
// let movies = Storage.get('movieStorage');

let movieArr = ["Batman", "Superman"];  
movies.set('MyMovieCollection', movieArr);
movies.get('MyMovieCollection');
// ["Batman", "Superman"]

Storage.destroy('movieStorage');

API

create(storageName: String, storageSize?: Number): Storage

Create a storage. By default, the storage size is defined to 1048576 octets.

let movies = Storage.create('movieStorage');

get(storageName: String): Storage

Get an existing storage

let movies = Storage.get('movieStorage');

destroy(storageName: String)

Destroy an existing storage As wakanda-storage is shared between all Node processes, the storage memory is not freed until destroy() is called.

Storage.destroy('movieStorage');

storage.set(key: String, value: String | Number | Boolean | Array | Object)

Set a storage key/value. Date and Buffer are not supported.

movies.set('total', 30);

storage.get(key: String): String | Number | Boolean | Array | Object

Get a storage key/value

let totalMovies = movies.get('total');

storage.remove(key: String)

Remove a storage key

movies.remove('total');

storage.clear()

Removes all keys/values from the storage

movies.clear();

storage.lock()

Lock storage. Storage cannot be update except by the thread who lock it. If already lock, then it waits until the storage is unlock.

movies.lock();

storage.unlock()

Unlock storage

movies.unlock();

storage.tryLock(): Boolean

Try to lock the storage. If already lock, then it returns false.

movies.tryLock();