# App Launch Detection

{% hint style="info" %}
You'll need to import the javascript file in your website before starting from this [link](/javascript-apis/getting-started.md).
{% endhint %}

This function returns `true` only when the app is launched. On subsequent calls during the same session, it will return `false`. If the app is terminated and relaunched, it will return `true` again. This behavior can be used to execute specific actions every time the app is launched.

{% tabs %}
{% tab title="Plain Javascript" %}

```javascript
window.WTN.appFirstLoad().then(function(value){
  console.log(value)
});
```

{% endtab %}

{% tab title="ES5+" %}

```javascript
import { appFirstLoad } from "webtonative"

appFirstLoad().then((value) => {
  console.log(value)
});
```

{% endtab %}
{% endtabs %}

Response : \
{\
   type : "firstCallWhenAppStarted",\
   result : true/false\
}

\*Feature was taken live on 23/12/2024


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.webtonative.com/javascript-apis/app-launch-detection.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.