store.js

/**
 * Store.js
 * Simple caching for api requests using ES6 Promise
 * I used jquery for ajax because of Bootstrap
 * store.fetch(val).then(this.handleResponse);
 */

const apiroot = '/api/v1/';
const cache = Object.create(null);

export default {

	fetch(query) {
		return new Promise((resolve, reject) => {
			if (cache[query]) {
				resolve(cache[query]);
			} else {
				$.getJSON(apiroot + query, json => {
					resolve(cache[query] = json);
				}).fail( (jqxhr, text, error) => {
					reject(text);
				});
			}
		});
	},
  /* other store methods */ 
}