https://github.com/karbunkul/dart_dynafeat

Library for implementing feature flag functionality
https://github.com/karbunkul/dart_dynafeat

Last synced: 4 months ago
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Library for implementing feature flag functionality

• Host: GitHub
• URL: https://github.com/karbunkul/dart_dynafeat
• Owner: karbunkul
• Created: 2026-02-10T07:53:43.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2026-02-12T05:38:02.000Z (4 months ago)
• Last Synced: 2026-02-12T15:17:34.997Z (4 months ago)
• Language: Dart
• Size: 16.6 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md

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README

          
# Dynafeat 🚩

A powerful, type-safe feature flagging and dynamic configuration library for Dart and Flutter.

## Key Features

- 🎯 **Context-Aware Rules:** Toggle features based on user ID, OS, build flavor, or any custom context.

- 🛡️ **Type Safety:** Native support for Strings, Numbers, and Booleans with compile-time safety.

- ⚙️ **Complex Conditions:** Use logical operators (eq, etc.) to define sophisticated release strategies.

- 🚀 **Built-in Caching:** High-performance resolution with an internal cache.

- ✅ **Validation:** Verify your configuration for consistency and logic errors.

- 🔌 **Offline-First:** Works entirely locally without needing a dedicated server or cloud provider.

- 🏗️ **Hybrid Ready:** Use it as a standalone local engine or as a client-side resolver for your own backend.

## Quick Start

```dart

// Define your feature configuration

final config = FeatureConfig(

  rev: 1,

  context: [Context.string(id: 'os')],

  features: [

    Feature.number(

      id: 'port',

      value: 3000,

      rules: [

        Rule(

          id: 'windows_port',

          conditions: [Condition.eq('os', 'windows')],

          value: 5000,

        ),

      ],

    ),

  ],

);

// Initialize Dynafeat

final dynafeat = Dynafeat.from(config);

// Evaluate feature based on context

final port = dynafeat.feature(

  'port', 

  context: {'os': 'windows'}

); // returns 5000

```