storeageDriver.js

class StorageDriver {
  constructor (conf = {}) {
    this.conf = conf

    if (
      typeof this.conf.storage.getItem !== 'function' ||
      typeof this.conf.storage.removeItem !== 'function' ||
      typeof this.conf.storage.setItem !== 'function'
    ) {
      throw new Error('Given Storage doesn\'t have methods `getItem`, `setItem` and `removeItem`.')
    }
  }

  setItem (key, value) {
    return this.conf.storage.setItem(this.conf.name + ':' + key, JSON.stringify(value))
  }

  getItem (key) {
    return JSON.parse(this.conf.storage.getItem(this.conf.name + ':' + key))
  }

  removeItem (key) {
    return this.conf.storage.removeItem(this.conf.name + ':' + key)
  }
}

export default StorageDriver