# Installation

## Tolstoy Widget Code

Add the following script at the head on your site: 

* Replace **{{APP\_KEY}}** with your account App Key.

```
<script>
  window.tolstoyAppKey='{{APP_KEY}}';
  var s = document.createElement('script');
  s.type = 'text/javascript';
  s.async = true;
  s.src = 'https://widget.gotolstoy.com/widget/widget.js';
  document.head.appendChild(s);
</script>
```

{% hint style="info" %}
&#x20;For Shopify users the script is added automatically using the Script​Tag API
{% endhint %}

### Single Tolstoy Code

If you want only a single widget on a single page you can also load just the Widget ID

* By using this you won't be able to use rules and conditions.

```bash
# Replace the window.tolstoyAppKey='{{APP_KEY}}';
window.tolstoyWidgetId='{{TOLSTOY_ID}}'
```

### Tolstoy User

If you know the logged in user you can add his email for better tracking.

If you want to add specific Rules & Triggers on users you can skip this and use [Identify](https://tolstoy.gitbook.io/tolstoy/javascript-sdk/identify)

```bash
window.tolstoyUser='{{email}}'
```