Overview
Rules is a lightweight, versatile validation library designed for Dart and Flutter applications. It provides a simple yet robust framework to define and enforce validation rules across forms, inputs, and data models. With support for custom validators, chaining, and clear error messages, it streamlines input validation in both mobile and web environments. The library is easy to integrate and maintain, making it ideal for developers seeking reliable validation without boilerplate code.
Use cases
- Form input validation
- Data model validation
- Custom rule creation
- Real-time feedback in UI
- Cross-platform apps
- User registration flows
Key features
- Chainable validation rules
- Support for custom validators
- Clear error messaging
- Lightweight and fast
- Extensible design
- Built-in common validators
Suitable for
- Flutter developers
- Dart backend services
- Complex form handling
- Validation-heavy applications
- Beginner to advanced users
- Multi-platform projects
Considerations
- Requires understanding of Dart syntax
- Limited documentation beyond basics
- May need additional setup for complex scenarios
- Not tailored for server-side only use cases
- No built-in internationalization support
- Depends on manual error handling