# How it works

The **Checkout SDK** is a Javascript SDK which allows you to integrate Tyro Health Online'payment and claim options as a modal view within the originating site.

## Checkout SDK

- Initialise the Checkout SDK and pass required invoice details to the SDK
- The SDK will guide your end user through completion of claim and payment
- At completion, the SDK will fire a callback which can be monitored by your website
- Your website can verify completion of checkout via an API request to the Tyro Health Online invoice status API


Notes

- When using the checkout SDK, users will need to pass a callbackOrigin(The URL of the booking website)
- When using the SDK, do not pass through any callbackURLs as the SDK will fire callbacks at completion to your website.