kibana-123/src/ui/public/storage/storage.js

Kibana is an open source (Apache Licensed), browser based analytics and search dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana strives to be easy to get started with, while also being flexible and powerful, just like Elastic

import modules from 'ui/modules';
import angular from 'angular';

function Storage(store) {
  let self = this;
  self.store = store;

  self.get = function (key) {
    try {
      return JSON.parse(self.store.getItem(key));
    } catch (e) {
      return null;
    }
  };

  self.set = function (key, value) {
    try {
      return self.store.setItem(key, angular.toJson(value));
    } catch (e) {
      return false;
    }
  };

  self.remove = function (key) {
    return self.store.removeItem(key);
  };

  self.clear = function () {
    return self.store.clear();
  };
}

let createService = function (type) {
  return function ($window) {
    return new Storage($window[type]);
  };
};

modules.get('kibana/storage')
  .service('localStorage', createService('localStorage'))
  .service('sessionStorage', createService('sessionStorage'));