function submitOrder(user) {
  var shoppingCart, zipCode, shippingRate, orderSuccessful;

  // Get the current user's shopping cart
  OrderAPI.getShoppingCartAsync(user)
  .then(function(cart) {
    shoppingCart = cart;
    return CustomerAPI.getProfileAsync(user);
  })
  .then(function(profile) {
  // Also look up the ZIP code from their profile
    zipCode = profile.zipCode;
  })
  .then(function(x) {
    // Calculate the shipping fees
    shippingRate = calculateShipping(shoppingCart, zipCode);
    return OrderAPI.placeOrderAsync(shoppingCart, shippingRate);
  })
  .then(function(success) {
    orderSuccessful = success;
  });

  // Submit the order

  console.log(`Your order ${orderSuccessful? "was" : "was NOT"} placed successfully`);
}

//The same thing with async await (someone else's solution)
async function submitOrder2(user) {
  let shoppingCart, zipCode, shippingRate, orderSuccessful;

  // Get the current user's shopping cart
  shoppingCart = await OrderAPI.getShoppingCartAsync(user);

  // Also look up the ZIP code from their profile
  zipCode = (await CustomerAPI.getProfileAsync(user)).zipCode;

  // Calculate the shipping fees
  shippingRate = calculateShipping(shoppingCart, zipCode);

  // Submit the order
  orderSuccessful = await OrderAPI.placeOrderAsync(shoppingCart, shippingRate);
  console.log(`Your order ${orderSuccessful? "was" : "was NOT"} placed successfully`);
}