# requestFileSystem method

Future<FileSystem> requestFileSystem (int size, { bool persistent: false })

Access a sandboxed file system of `size` bytes.

If `persistent` is true, the application will request permission from the user to create lasting storage. This storage cannot be freed without the user's permission. Returns a Future whose value stores a reference to the sandboxed file system for use. Because the file system is sandboxed, applications cannot access file systems created in other web pages.

## Implementation

    Future<FileSystem> requestFileSystem(int size, {bool persistent: false}) {
      return _requestFileSystem(persistent ? 1 : 0, size);
    }