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A Data Storage Solution, created with simplicity in mind. It is a simple, lightweight, and fast database solution for Flutter apps.

Logo

DBX #

dbx is a Dart package designed for secure and efficient local storage using Protocol Buffers instead of JSON.

  • A Key-Value Database with Easy API that supports wide range of Data Types.

Features #

  • Protocol Buffers: Utilizes Protocol Buffers (protobuf) for data serialization, offering significant performance improvements over JSON.
  • Secure Storage: Data is securely stored using flutter_secure_storage and encrypted with the encrypt library.
  • Comprehensive Data Support: Supports all data types, including their list variants.
    • What we mean
      • Supported data types are int, double, bool, String, Uint8List, List<int>, List<double>, List<bool>, List<String>, and List<Uint8List>.
      • Uint8List for bytes
  • Efficient and Compact: Protobuf is more efficient and compact compared to JSON, reducing latency and improving app performance.
  • Familiar Api: Same API as of SharedPreference.
    • Won't miss SharedPreference. No headache, easy adaption.🚀
  • Created With Simplicity in mind
    • No Object Creation, no overhead of state management solution
    • No Object Passing
    • All method are static, just call and use.

Benefits of Using Protocol Buffers Over JSON #

  • Performance: Protobuf is significantly faster than JSON for serialization and deserialization.
  • Compactness: Protobuf messages are smaller in size, which reduces storage space and improves transmission speed.
  • Efficiency: Protobuf is more efficient in terms of CPU and memory usage.

Advantages Over Shared Preferences #

  • Data Integrity: Protobuf ensures data integrity and consistency, which is crucial for complex data structures.
  • Security: Data is encrypted and securely stored, unlike shared preferences which can be more vulnerable to security breaches.
  • Scalability: Protobuf's efficient serialization makes it suitable for larger datasets and more complex data structures.

Installation #

Add dbx to your pubspec.yaml:

dependencies:
  dbx: ^0.0.1

you can install packages from the command line:

with Flutter:

$  flutter pub get

with Dart:

$  dart pub get

Initialization #

with Flutter:

import 'package:dbx/dbx.dart';

// Example usage
void main() async {
    WidgetsFlutterBinding.ensureInitialized();
    await DBX.init();
    runApp(MyApp());
}

with dart:

import 'package:dbx/dbx.dart';

// Example usage
void main() async {
  await DBX.init();
}

Usage #

  • Store Data
  // Store data
   DBX.setString('message', 'Give it a try!');
   DBX.setString('username', 'john_doe');
   DBX.setInt('age', 30);
   DBX.setDouble('height', 5.9);
   DBX.setBool('isAdmin', true);
   DBX.setBytes(
        'profilePicture', File('assets/profile.jpeg').readAsBytesSync());
   DBX.setStringList('tags', ['dart', 'flutter']);
   DBX.setIntList('scores', [100, 95, 85]);
   DBX.setDoubleList('strike_rate', [36.6, 37.0, 36.8]);
   DBX.setBoolList('attendence', [true, false, true]);
   DBX.setBytesList('files', [
      File('assets/file1.jpeg').readAsBytesSync(),
      File('assets/logo.jpeg').readAsBytesSync(),
      File('assets/file2.jpeg').readAsBytesSync()
    ]);
 
  • Read Data
   @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(
          title: Text('DBX Example'),
          centerTitle: true,
        ),
        body: Center(
          child: FutureBuilder(
            future: writeData(),
            builder: (context, snapshot) {
              if (snapshot.connectionState == ConnectionState.done) {
                final files =DBX.getBytesList('files');
                return Column(
                  children: [
                    Image.memory(Uint8List.fromList(
                       DBX.getBytes('profilePicture') ?? [])),
                    Text("Message: ${DBX.getString('message') ?? 'No data'}"),
                    Text(
                        "Username: ${DBX.getString('username') ?? 'No Data'}"), // Output: john_doe
                    Text("Age: ${DBX.getInt('age')}"), // Output: 30
                    Text(
                        "Height: ${DBX.getDouble('height')}"), // Output: 5.9
                    Text(
                        "IsAdmin: ${DBX.getBool('isAdmin')}"), // Output: true
                    Text(
                        "Tags: ${DBX.getStringList('tags') ?? [].join(',')}"), // Output: [dart, flutter]
                    Text(
                        "Scores: ${DBX.getIntList('scores') ?? [].join(',')}"), // Output: [100, 95, 85]
                    Text(
                        "Strike Rate: ${DBX.getDoubleList('strike_rate')}"), // Output: [36.6, 37.0, 36.8]
                    Text(
                        "Attendence: ${DBX.getBoolList('attendence')}"), // Output: [true, false, true]
                    if (files != null)
                      Row(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          for (final file in files)
                            Image.memory(Uint8List.fromList(file)),
                        ],
                      ),
                  ],
                );
              } else {
                return CircularProgressIndicator();
              }
            },
          ),
        ),
      ),
    );
  }

Contributing #

We welcome contributions from the community! If you have any ideas, suggestions, or bug reports, please open an issue or submit a pull request.

If you find this package useful, please consider sponsoring its development to help us continue improving it. You will be mentioned below

Sponsor

License #

This project is licensed under the MIT License - see the LICENSE file for details.

TODO #

  • Support for Dart Objects: Adding support for storing Dart objects is still pending and requires contributions from the community. If you are interested in helping out, please check out the issues section or submit a pull request.
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verified publisherkumpali.com

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A Data Storage Solution, created with simplicity in mind. It is a simple, lightweight, and fast database solution for Flutter apps.

Homepage
Repository (GitHub)
View/report issues

Documentation

API reference

License

MIT (license)

Dependencies

archive, async, encrypt, fixnum, flutter, flutter_secure_storage, path_provider, protobuf

More

Packages that depend on dbx