# Interface: `IFederatedExtension`

[@jupyterlite/types](../modules/jupyterlite_types.md).IFederatedExtension

The interface for a federated extension, as it appears in `jupyter-config-data`

TODO: sync with schema, Lab core, etc.


## Properties

### `extension`

>
> `Optional` **`extension`**: `string`

Optional relative path to the extension

#### Defined in

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



### `load`

>
> **`load`**: `string`

The relative entrypoint to the WebPack remoteEntry

#### Defined in

[packages/types/src/tokens.ts:17](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/types/src/tokens.ts#L17)



### `mimeExtension`

>
> `Optional` **`mimeExtension`**: `string`

Optional relative path to the mimeExtension

#### Defined in

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



### `name`

>
> **`name`**: `string`

The npm-compatible name of the package

#### Defined in

[packages/types/src/tokens.ts:13](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/types/src/tokens.ts#L13)



### `style`

>
> `Optional` **`style`**: `string`

Optional path to the style module

#### Defined in

[packages/types/src/tokens.ts:25](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/types/src/tokens.ts#L25)