shlink-web-client/src/utils/Storage.js

const PREFIX = 'shlink';
const buildPath = path => `${PREFIX}.${path}`;

export class Storage {
  constructor(localStorage) {
    this.localStorage = localStorage;
  }

  get = key => {
    const item = this.localStorage.getItem(buildPath(key));
    return item ? JSON.parse(item) : undefined;
  };

  set = (key, value) => this.localStorage.setItem(buildPath(key), JSON.stringify(value));
}

const storage = typeof localStorage !== 'undefined' ? localStorage : {};
export default new Storage(storage);