fpvalidate 0.5.0

A functional validation library for Dart with support for Either and TaskEither types.

0.5.0

• BREAKING: Updated SDK constraint to ^3.10.0
• NEW: Added CastingExtension with isType<T>() for type-safe validation chains
• NEW: Added typeMismatch error message to internationalization system
• NEW: Added TypeMismatchValidationError for cleaner type error handling
• FIX: Added missing field extension for Either type from fpdart

0.4.0

• BREAKING: Renamed check to ensure for clarity
• BREAKING: Renamed then to bind for consistency with fpdart
• NEW: Added isNotEmpty() extension method for nullable strings as shortcut for isNotNull().isNotEmpty()

0.3.0

• NEW: Added comprehensive internationalization support for validation messages
  • Type-safe ValidationMessages interface for custom message implementations
  • ValidationMessagesMixin for partial message overrides while keeping default English fallbacks
  • EnglishValidationMessages as the default English implementation
  • Global configuration via ValidationStep.configureMessages() and ValidationStep.resetMessages()
  • Support for all validation scenarios with proper parameter substitution
  • No breaking changes to existing API - all existing code continues to work unchanged
  • Added comprehensive example demonstrating partial overrides and complete custom implementations

0.2.0

• BREAKING: Refactored error system with hierarchical error types for better error handling and debugging
  • Introduced specific error classes for different validation scenarios
  • StringValidationError for string-specific validation failures
  • NumericValidationError for numeric validation failures
  • NullableValidationError for nullable field validation failures
  • Core validation errors: FieldInitializationError, AsyncFieldInitializationError, TryMapValidationError, CheckValidationError, BindValidationError
• Improved type safety in error handling throughout the validation pipeline
• Better stack trace support for debugging validation failures

0.1.1

• Added field extensions for Either and TaskEither types from fpdart
• You can now start validation chains directly from Right, Left, and TaskEither values
• Permit FutureOr in async check and tryMap methods
• Added isOneOf() method for string and numeric validation
• Added isNoneOf() method for string and numeric validation
• Renamed notEmpty() to isNotEmpty() for consistency

0.1.0

• Initial version with comprehensive validation library
• Support for functional programming with fpdart Either and TaskEither
• Fluent API for chaining validation rules
• Built-in validators for strings, numbers, and nullable types
• String validators: email, URL, phone, UUID, credit card, postal code, ISO date, 24-hour time
• Numeric validators: min/max, range, even/odd, positive/negative, power of 2, perfect square, port number
• Batch validation for multiple fields
• Async validation support
• Custom validation with check() and tryMap()
• Error handling with descriptive messages
• Nullable field support