Storage Util Flutter using Path Provider

storage_util.dart

import 'dart:convert';

import 'package:encrypt/encrypt.dart';
import 'package:path_provider/path_provider.dart';
import 'dart:async';
import 'dart:io';

class StorageUtil {

  static Future<String> getLocalPath() async {
    var directory = await getApplicationDocumentsDirectory();
    return directory.path;
  }

  static Future<String> readFile(Future<File> localFile) async {
    try {
      final file = await localFile;

      String content = await file.readAsString();
      return content;
    } catch (e) {
      return '';
    }
  }

  static Future<File> writeFile(String object , Future<File> localFile) async {
    final file = await localFile;
    return file.writeAsString('$object', mode: FileMode.append);
  }

  static Future<File> cleanFile(Future<File> localFile) async {
    final file = await localFile;
    return file.writeAsString('');
  }

  static Encrypted encrypt(String data){

    final key = Key.fromUtf8('my 32 length key................');
    final iv = IV.fromLength(16);

    final encrypter = Encrypter(AES(key));

    final encrypted = encrypter.encrypt(data, iv: iv);

    return encrypted;
  }

  static String decrypt(Encrypted data){

    final key = Key.fromUtf8('my 32 length key................');
    final iv = IV.fromLength(16);

    final encrypter = Encrypter(AES(key));

    return encrypter.decrypt(data, iv: iv);
  }

  static String toBase64(File file){
    List<int> imageBytes = file.readAsBytesSync();
    return base64Encode(imageBytes);
  }


}