[**@jupyterlite**](../../../../../README.md)

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[@jupyterlite](../../../../../README.md) / [@jupyterlite/application](../../../README.md) / [SingleWidgetApp](../README.md) / IOptions

# Interface: IOptions

Defined in: [packages/application/src/singleWidgetApp.ts:99](https://github.com/jupyterlite/jupyterlite/blob/14439ec34e3cade5baa221a050277e15da9d0c06/packages/application/src/singleWidgetApp.ts#L99)

The instantiation options for an App application.

## Extends

- `IOptions`\<[`ISingleWidgetShell`](../../../interfaces/ISingleWidgetShell.md)\>.`Partial`\<[`IInfo`](IInfo.md)\>

## Properties

### commandLinker?

> `optional` **commandLinker**: `CommandLinker`

Defined in: node\_modules/@jupyterlab/application/lib/frontend.d.ts:111

The command linker used by the application.

#### Inherited from

`JupyterFrontEnd.IOptions.commandLinker`

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### contextMenuRenderer?

> `optional` **contextMenuRenderer**: `IRenderer`

Defined in: node\_modules/@lumino/application/types/index.d.ts:307

A custom renderer for the context menu.

#### Inherited from

`JupyterFrontEnd.IOptions.contextMenuRenderer`

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### docRegistry?

> `optional` **docRegistry**: `DocumentRegistry`

Defined in: node\_modules/@jupyterlab/application/lib/frontend.d.ts:107

The document registry instance used by the application.

#### Inherited from

`JupyterFrontEnd.IOptions.docRegistry`

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### mimeExtensions?

> `readonly` `optional` **mimeExtensions**: `IExtensionModule`[]

Defined in: [packages/application/src/singleWidgetApp.ts:110](https://github.com/jupyterlite/jupyterlite/blob/14439ec34e3cade5baa221a050277e15da9d0c06/packages/application/src/singleWidgetApp.ts#L110)

The mime renderer extensions.

#### Inherited from

`Partial.mimeExtensions`

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### pluginRegistry?

> `optional` **pluginRegistry**: `PluginRegistry`\<`any`\>

Defined in: node\_modules/@lumino/application/types/index.d.ts:314

Application plugin registry.

If defined the options related to the plugin registry will
be ignored.

#### Inherited from

`JupyterFrontEnd.IOptions.pluginRegistry`

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### restored?

> `optional` **restored**: `Promise`\<`any`\>

Defined in: node\_modules/@jupyterlab/application/lib/frontend.d.ts:120

Promise that resolves when state is first restored, returning layout
description.

#### Inherited from

`JupyterFrontEnd.IOptions.restored`

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### serviceManager?

> `optional` **serviceManager**: `IManager`

Defined in: node\_modules/@jupyterlab/application/lib/frontend.d.ts:115

The service manager used by the application.

#### Inherited from

`JupyterFrontEnd.IOptions.serviceManager`

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### shell

> **shell**: [`ISingleWidgetShell`](../../../interfaces/ISingleWidgetShell.md)

Defined in: node\_modules/@lumino/application/types/index.d.ts:303

The shell widget to use for the application.

This should be a newly created and initialized widget.

The application will attach the widget to the DOM.

#### Inherited from

`JupyterFrontEnd.IOptions.shell`

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### validatePlugin()?

> `optional` **validatePlugin**: (`plugin`) => `boolean`

Defined in: node\_modules/@lumino/coreutils/types/plugins.d.ts:277

Validate that a plugin is allowed to be registered.

Default is `() => true`.

#### Parameters

##### plugin

`IPlugin`\<`any`, `any`\>

The plugin to validate

#### Returns

`boolean`

Whether the plugin can be registered or not.

#### Notes
We recommend you print a console message with the reason
a plugin is invalid.

#### Inherited from

`JupyterFrontEnd.IOptions.validatePlugin`