kibana/x-pack/plugins/lens/public/settings_storage.tsx

/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0; you may not use this file except in compliance with the Elastic License
 * 2.0.
 */

import { IStorageWrapper } from 'src/plugins/kibana_utils/public';

const STORAGE_KEY = 'lens-settings';

export const readFromStorage = (storage: IStorageWrapper, key: string) => {
  const data = storage.get(STORAGE_KEY);
  return data && data[key];
};
export const writeToStorage = (storage: IStorageWrapper, key: string, value: string) => {
  storage.set(STORAGE_KEY, { [key]: value });
};