[Home](./index.md) > [@empathyco/x-components](./x-components.md) > [InstallXOptions](./x-components.installxoptions.md) ## InstallXOptions interface Interface for the parameter of the constructor of [XInstaller](./x-components.xinstaller.md) function. It is an extended version of [XPluginOptions](./x-components.xpluginoptions.md). **Signature:** ```typescript export interface InstallXOptions extends XPluginOptions ``` **Extends:** [XPluginOptions](./x-components.xpluginoptions.md) ## Properties

Property	Modifiers	Type	Description
[api?](./x-components.installxoptions.api.md)		API \| false	_(Optional)_ The API to expose globally. If is not passed the default [BaseXAPI](./x-components.basexapi.md) will be used. If a `false` value is passed then the API is not created.
[bus?](./x-components.installxoptions.bus.md)		[XBus](./x-components.xbus.md)<[XEventsTypes](./x-components.xeventstypes.md), [WireMetadata](./x-components.wiremetadata.md)>	_(Optional)_ The XBus used in the [XPlugin](./x-components.xplugin.md). If not passed an instance of The XPriorityBus will be used.
[domElement?](./x-components.installxoptions.domelement.md)		Element \| ShadowRoot \| string \| ((snippetConfig: [NormalisedSnippetConfig](./x-components.normalisedsnippetconfig.md)) => Element \| ShadowRoot \| string)	_(Optional)_ An Element \| string \| function to indicate the HTML element that will contain the Vue application. If it isn't passed, the [XInstaller](./x-components.xinstaller.md) will create the target element.
[installExtraPlugins?](./x-components.installxoptions.installextraplugins.md)		(options: [ExtraPluginsOptions](./x-components.extrapluginsoptions.md)) => void \| Promise<void>	_(Optional)_ Adds the option to install more Vue plugins, giving access to the [SnippetConfig](./x-components.snippetconfig.md) and the XBus.
[onCreateApp?](./x-components.installxoptions.oncreateapp.md)		(app: App) => void	_(Optional)_ Callback to invoke after instantiating the app.
[plugin?](./x-components.installxoptions.plugin.md)		Plugin<[XPluginOptions](./x-components.xpluginoptions.md)>	_(Optional)_ The XPlugin which will be installed. If not passed, an instance of [XPlugin](./x-components.xplugin.md) will be installed.
[rootComponent?](./x-components.installxoptions.rootcomponent.md)		Component	_(Optional)_ The Vue component used as root of the application. If it is not passed, no Vue Application is initialized, only plugin installed.