document.addEventListener('deviceready', onDeviceReady);
function onDeviceReady() {
store.register({type: store.CONSUMABLE, id: 'my_product'});
.approved(finishPurchase);
function finishPurchase(p) {
localStorage.goldCoins = (localStorage.goldCoins | 0) + 10;
const product = store.get('my_product');
const button = `<button onclick="store.order('my_product')">Purchase</button>`;
document.getElementsByTagName('body')[0].innerHTML = `
Gold: ${localStorage.goldCoins | 0}
Product.state: ${product.state}
.descr: ${product.description}
${product.canPurchase ? button : ''}