# Connectivity API
The Connectivity API enables POS UI extensions to retrieve device connectivity information, such as whether the device has an internet connection.

## ConnectivityApi

### ConnectivityApiContent

### subscribable
Creates a subscription to changes in connectivity.
Provides an initial value and a callback to subscribe to value changes.
### ConnectivityState

### internetConnected
Whether the device is connected to the internet
### ConnectivityStateSeverity

'Connected' | 'Disconnected'
## Examples
The Connectivity API enables POS UI extensions to retrieve device connectivity information, such as whether the device has an internet connection.
### 

### Subscribe to connectivity changes.

```tsx
import React from 'react';
import {
  Tile,
  useConnectivitySubscription,
  reactExtension,
} from '@shopify/ui-extensions-react/point-of-sale';

const SmartGridTile = () => {
  const connectivity = useConnectivitySubscription();

  return (
    <Tile
      title='My App'
      enabled={connectivity.internetConnected === 'Connected'}
    />
  );
};

export default reactExtension('pos.home.tile.render', () => <SmartGridTile />);

```

```ts
import {
  Tile,
  ConnectivityState,
  extension,
} from '@shopify/ui-extensions/point-of-sale';

export default extension('pos.home.tile.render', (root, api) => {
  const tile = root.createComponent(Tile, {
    title: 'My App',
    enabled: true,
  });

  api.Connectivity.subscribable.subscribe(
    (newConnectivity: ConnectivityState) => {
      tile.updateProps({
        enabled: newConnectivity.internetConnected === 'Connected',
      });
    },
  );

  root.append(tile);
});

```