---
title: App
description: |-
  The App API provides information about the app and the status of its extensions.

  > Tip:
  > At this time, the App API only supports checkout and customer account UI extensions.
api_name: app-bridge-library
source_url:
  html: https://shopify.dev/docs/api/app-bridge-library/apis/app
  md: https://shopify.dev/docs/api/app-bridge-library/apis/app.md
---

# App

The App API provides information about the app and the status of its extensions.

Tip

At this time, the App API only supports checkout and customer account UI extensions.

## Extensions method

The `app.extensions()` method asynchronously retrieves detailed information about the app's checkout and customer account extensions, including which targets they are activated on.

It returns a Promise that resolves to an array of `ExtensionInfo` objects. Each object contains the extension's handle and its activation targets. The array may be empty if the app has no extensions.

* activations

  ExtensionActivation\[]

  required

  List of activation records for the extension. Contains information about where the extension is currently activated.

* handle

  string

  required

  The unique identifier for the extension.

### ExtensionActivation

Represents an activation record for an extension. Contains information about where an extension is activated.

* target

  The target identifier for the extension activation.

  ```ts
  string
  ```

```ts
export interface ExtensionActivation {
  /**
   * The target identifier for the extension activation.
   */
  target: string;
}
```

### Examples

* #### Get Extensions Status

  ##### Default

  ```js
  const extensions = await shopify.app.extensions();
  ```