アクション

window.aftersell.cart.ready().then(() => {
  const state = window.aftersell.cart.actions.getCart();
  console.log(state.itemCount, 'items');
});

// Open the drawer from your own cart link.
document.querySelector('#my-cart-link').addEventListener('click', (event) => {
  event.preventDefault();
  window.aftersell.cart.actions.open();
});

// Close it after the shopper does something in a custom block.
window.aftersell.cart.actions.close();

window.aftersell.cart.ready().then(() => {
  const state = window.aftersell.cart.actions.getCart();
  if (!state) return; // the initial load failed

  console.log(state.itemCount, 'items,', state.items.length, 'lines');
  console.log('Total:', window.aftersell.cart.actions.formatMoney(state.totalPrice));
});

window.aftersell.cart.actions.formatMoney(5779);  // "$57.79"
window.aftersell.cart.actions.formatMoney(0);     // "$0.00"

// Show the cart total in your own header element.
window.aftersell.cart.events.on('cart_updated', (state) => {
  document.querySelector('#header-total').textContent =
    window.aftersell.cart.actions.formatMoney(state.totalPrice);
});

// Add one, then show the shopper.
window.aftersell.cart.actions.addItem(41720671830082).then(() => {
  window.aftersell.cart.actions.open();
});

// Add a specific quantity.
window.aftersell.cart.actions.addItem(41720671830082, 3);

// Remove any free line from the cart.
const gift = window.aftersell.cart.actions
  .getCart()
  .items.find((line) => line.finalLinePrice === 0);
if (gift) window.aftersell.cart.actions.removeItem(gift.key);

const line = window.aftersell.cart.actions.getCart().items[0];
if (line) window.aftersell.cart.actions.updateItemQuantity(line.key, 3);

// Cap a line at one unit.
window.aftersell.cart.events.on('cart_updated', (state) => {
  state.items.forEach((line) => {
    if (line.variantId === LIMITED_VARIANT_ID && line.quantity > 1) {
      window.aftersell.cart.actions.updateItemQuantity(line.key, 1);
    }
  });
});

const line = window.aftersell.cart.actions.getCart().items[0];
window.aftersell.cart.actions.replaceLineVariant(line.key, 41720671862850);

// After a raw Ajax API call of your own.
fetch('/cart/add.js', { method: 'POST', /* … */ })
  .then(() => window.aftersell.cart.actions.refresh())
  .then(() => { window.aftersell.cart.actions.open(); });

// A currency switcher changed the format: repaint prices already on screen.
window.myTheme.onCurrencyChange((currency) => {
  window.aftersell.cart.configure({ money_format: FORMATS[currency] });
  window.aftersell.cart.actions.visualRefresh();
});