# Preload InLine Cart to increase loading speed

## Overview

To reduce checkout load time, you can preload the InLine Checkout in the background on page load or when the customer selects a product.

## Use case

1. Add an HTML link or button to your page like the one below.
2. Create a JavaScript click handler to execute the InLine Client desired methods.
3. Use the `TwoCoInlineCart.products.add({code, quantity, options})` method to prepare your products.
4. Use the `TwoCoInlineCart.cart.preload()` method to load the cart in the background.
5. Use the `TwoCoInlineCart.cart.reloadCart()` method to show the cart on your page.

## Sample request

### HTML

```html
<a href="#" class="btn btn-success" id="buy-button">Buy now!</a>
```

### JavaScript

```javascript
window.addEventListener("load", (event) => {
  TwoCoInlineCart.products.add({
    code: "2CO3MONTHS",
    qty: 1
  });
  TwoCoInlineCart.cart.preload();
});

window.document.getElementById('buy-button').addEventListener('click', function() {
  TwoCoInlineCart.cart.reloadCart();
});
```

## Demo (using test mode)

{% embed url="<https://codepen.io/2checkout-connectors/pen/yyOpRKw>" %}


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