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# FSClient

An interface for apps and daemons to interact with FSKit.

```
class FSClient
```

## Overview

FSClient is the primary management interface for FSKit.
Use this class to discover FSKit extensions installed on the system, including your own.

> Important: Don’t subclass `FSClient`.

## Topics

### Obtaining the shared instance

[`shared`](/documentation/FSKit/FSClient/shared)

The shared instance of the FSKit client class.

### Discovering installed extensions

[`fetchInstalledExtensions(completionHandler:)`](/documentation/FSKit/FSClient/fetchInstalledExtensions(completionHandler:))

Asynchronously retrieves an list of installed file system modules.

[`FSModuleIdentity`](/documentation/FSKit/FSModuleIdentity)

An installed file system module.

### Performing single-volume mounting

[`mountSingleVolume(resource:bundleID:options:completionHandler:)`](/documentation/FSKit/FSClient/mountSingleVolume(resource:bundleID:options:completionHandler:))

Asynchronously mounts a single volume file system with a given resource.

[`FSResource`](/documentation/FSKit/FSResource)

An abstract resource a file system uses to provide data for a volume.

### Accessing file system extension settings

[`openFileSystemExtensionsSettings()`](/documentation/FSKit/FSClient/openFileSystemExtensionsSettings())

Opens the File System Extensions settings in System Settings.


---

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