---
name: "getFileSystemManager"
mode: "kit"
versionRequirements:
  - { name: "BaseKit", version: "2.2.3" }
  - { name: "@ray-js/ray", version: "0.3.23" }
platform:
  - "iOS"
  - "Android"
async: true
title: "getFileSystemManager"
---

## getFileSystemManager

> [VERSION] BaseKit >= 2.2.3 | @ray-js/ray >= 0.3.23

> [PLATFORM] iOS, Android

> ⚡ **Supports Promise** — Returns a Promise when success / fail / complete callbacks are omitted.

### Description

Get the file manager; only files within the App can be operated on. If file operations require permission, call the permission API to request it

### Parameters

| Property | Type | Required | Default | Description |
| --- | --- | --- | --- | --- |
| `complete` | `() => void` | No | - | Completion callback (executed on both success and failure) |
| `success` | `() => void` | No | - | Callback on successful API call |
| `fail` | `(params: Object) => void` ↓see below | No | - | Failure callback |

#### fail callback parameters

| Property | Type | Description |
| --- | --- | --- |
| `errorMsg` | `string` | Error message |
| `errorCode` | `string \| number` | Error code |
| `innerError` | `Object` | Error extension |

##### fail(params).innerError properties

| Property | Type | Description |
| --- | --- | --- |
| `errorCode` | `string \| number` | Error extension code |
| `errorMsg` | `string` | Error extension message |


### Examples

#### Demo

```tsx
import { getFileSystemManager } from '@ray-js/ray'

// getFileSystemManager is a task getter that returns a file manager handle; subsequent file operations are invoked on it.
const fm = await getFileSystemManager();
console.log(fm);
```