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This is documentation for the next SDK version. For up-to-date documentation, see the latest version (SDK 51).

Expo FileSystem (next)

A library that provides access to the local file system on the device.

Android

iOS

tvOS

expo-file-system provides access to a file system stored locally on the device.

Installation

Terminal

- npx expo install expo-file-system

If you are installing this in an existing React Native app (bare workflow), start by installing expo in your project. Then, follow the additional instructions as mentioned by library's README under "Installation in bare React Native projects" section.

Usage

API

Classes

Android

iOS

tvOS

`Directory`

Type: Class extends FileSystemDirectory

Directory Properties

Android

iOS

tvOS

`path`

Type: string

Represents the directory path.

Directory Methods

Android

iOS

tvOS

`create()`

Creates a directory.

Returns:

void

Android

iOS

tvOS

`delete()`

Deletes a directory.

Returns:

void

Android

iOS

tvOS

`exists()`

Checks if a directory exists.

Returns:

boolean

true if the directory exists, false otherwise.

Android

iOS

tvOS

`File`

Type: Class extends FileSystemFile

File Properties

Android

iOS

tvOS

`path`

Type: string

Represents the file path.

File Methods

Android

iOS

tvOS

`create()`

Creates a file.

Returns:

void

Android

iOS

tvOS

`delete()`

Deletes a file.

Returns:

void

Android

iOS

tvOS

`exists()`

Checks if a file exists.

Returns:

boolean

true if the file exists, false otherwise.

Android

iOS

tvOS

`text()`

Retrieves text from the file.

Returns:

string

The contents of the file as string.

Android

iOS

tvOS

`write(content)`

Name	Type	Description
content	`string`	The content to write into the file.

Writes content to the file.

Returns:

void

Methods

Android

iOS

tvOS

`FileSystem Next.write(file, contents)`

Name	Type
file	`File`
contents	`string`

Returns:

Promise<void>