Cart API

Manage shopping carts, add items, and update quantities.

Create Cart

Initialize a new cart session, optionally with starting items.

Initialize empty cart

const cart = await swat.cart.create([]); 
// Store cart.id in localStorage for persistence

Initialize with items

const cart = await swat.cart.create([
  { productId: 'prod_123', quantity: 1 },
  { productId: 'prod_456', quantity: 2 }
]);

Retrieve current cart state. Useful on page load.

const cartId = localStorage.getItem('cart_id');
if (cartId) {
  const cart = await swat.cart.get(cartId);
}

Add one or more products to an existing cart.

const updatedCart = await swat.cart.addItems(cartId, [
  { productId: 'prod_789', quantity: 1 }
]);

// Set quantity to 5
const updatedCart = await swat.cart.updateItem(cartId, 'prod_123', 5);

const updatedCart = await swat.cart.removeItem(cartId, 'prod_123');