# Ecommerce Widget
This guide will take you through the process of integrating PurplePay checkout page to your ecommerce website and start accepting crypto payments instantly.
### Ecommerce Widget Integration
1. Create an API key, [here](https://purple-pay.gitbook.io/purple-pay/developers/api-key).
2. In case of a SPA,
Paste the HTML code in the `public/index.html` or `_documents.tsx` or directly in the file where you want to make the checkout.
```jsx
```
***It’s important that you don’t change the**** ****`id`**** ****of the div.***\
\
\&#xNAN;**\*\*NOTE:** Remember to switch 'YOUR\_API\_KEY' here with the generated key.
3. To load the widget script, you'd have to load the script tag of your checkout page.
```typescriptreact
```
\
Upon document load, the widget is initialised automatically.
4. The payment sessions are created with the method `window.createPaymentSession` which take in arguments:
* **orderID**
* The order id of the cart.
* **orderAmount**
* The amount to be paid in USD.
* **chainId**
* Chain in which payment is to be done.
* **successCallback**
* Callback to be called once payment is successful.
5. You have to call this method with the correct arguments to initiate a checkout session.
6. Once the payment is done, using the successCallback, you can perform actions in your app.
---
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