# Interface: `IServiceWorkerManager`

[@jupyterlite/server](../modules/jupyterlite_server.md).IServiceWorkerManager

The interface for the ServiceWorkerRegistration.


## Properties

### `enabled`

>
> `Readonly` **`enabled`**: `boolean`

Whether the ServiceWorker is enabled or not.

#### Defined in

[packages/server/src/tokens.ts:29](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/server/src/tokens.ts#L29)



### `ready`

>
> **`ready`**: `Promise`<`void`\>

A Promise that resolves when the ServiceWorker is registered, or rejects if it cannot

#### Defined in

[packages/server/src/tokens.ts:34](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/server/src/tokens.ts#L34)



### `registrationChanged`

>
> `Readonly` **`registrationChanged`**: `ISignal`<[`IServiceWorkerManager`](../modules/jupyterlite_server.md#iserviceworkermanager), ``null`` \| `ServiceWorkerRegistration`\>

Signal fired when the registration changed.

#### Defined in

[packages/server/src/tokens.ts:21](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/server/src/tokens.ts#L21)