validasi 1.0.0-dev.1

An easy to use and flexible validation library for Dart and Flutter. Easily validate your forms input with built-in rules or create your own.

1.0.0-dev.0

This is the v1 development release of Validasi. It is a major rework of the library and is not source-compatible with the 0.0.x series.

Added

• Agent-native schema introspection contracts:
  • RuleMetadata
  • SchemaDescriptor
  • ValidasiEngine.introspect()
• Deterministic tool payload APIs:
  • ValidationError.toToolMap()
  • ValidasiResult.toToolResponse()
• New adapter package: packages/validasi_mcp
  • JSON-RPC stdio server with MCP methods initialize, tools/list, and tools/call
  • Tools: list_schemas, describe_schema, validate_input
  • Registry and handler APIs for embedding
• Expanded built-in rule coverage:
  • Strings: oneOf
  • Numbers: Finite, LessThan, LessThanEqual, MoreThan, MoreThanEqual
  • Maps: HasFields, HasFieldKeys, ConditionalField
  • Iterables: ForEach, MinLength
  • Generic: Having, InlineRule, Nullable, Required
  • Transformer: Transform
• any() helper for flexible validation

Changed

• Reworked the validation core around the new engine, cache, and generic context model.
• Moved the core package into packages/validasi.
• Refreshed the documentation set and examples for the new API surface.

Fixed

• Nullable runtime checks now return the expected validation error.
• Finite-rule type handling and condition checks were corrected.
• Documentation links, image paths, and README references were cleaned up.

0.0.1

Initial release of Validasi library. This release includes the following features:

• Built-in validators for common data types
• Object and Array schema for complex data validation
• Transformer to convert input value into desired format
• Safe validation using tryParse and tryParseAsync method
• Custom rule support

0.0.2

This release includes the following changes:

• Update documentation: fix typo customAsync to custom, add validateAsync to Helpers section
• Adjust validation(core): ensure rules are unique by using Map, so when rule registered more than once, the old one will be replaced
• Adjust validator test (core): introduce should only register rule once test and adjust the rules from array to map
• Update package description to meet dart package criteria
• Update image in README.md to use absolute link

0.0.3

Minor release to update the following:

• Expose FailFn, CustomRule, CustomCallback API

0.0.4

This release introduce GenericValidator, add some rules for Array Validation, and add some methods for Object Validation.

• Add max, notContains, contains, and unique rule for ArrayValidator.
• Add extend and without method for ObjectValidator.
• Add new GenericValidator through Validasi.generic<T>(transformer) to help validate any type.

0.0.5

This release introduce breaking changes! It simplifies the FieldValidator and GroupValidator Helpers API from previously when used in flutter:

var group = GroupValidator({
    'example': Validasi.string()
})

TextFormField(
  validator: (v) => FieldValidator(Validasi.string()).validate(v, path: 'Custom Path'),
)

TextFormField(
    validator: (v) => group.validate('example', v)
)

To a more simpler API:

var group = GroupValidator({
    'example': Validasi.string()
})

TextFormField(
  validator: FieldValidator(Validasi.string(), path: 'Custom Path').validate,
)

TextFormField(
    validator: group.on('example', path: 'Custom Path').validate
)

This means the previous code is not longer valid and should be updated to the new API.

Affected methods:

• FieldValidator.validate
• GroupValidator.validate

0.0.6

What's Changed

• chore(deps): bump intl from 0.19.0 to 0.20.2 by @dependabot in https://github.com/albetnov/validasi/pull/4
• chore(deps): bump lints from 4.0.0 to 5.1.1 by @dependabot in https://github.com/albetnov/validasi/pull/5

New Contributors

• @dependabot made their first contribution in https://github.com/albetnov/validasi/pull/4

Full Changelog: https://github.com/albetnov/validasi/compare/v0.0.5...v0.0.6

0.0.7

What's Changed

• feat(string/url): Enhance url validation adding checks for validating schema and host using UrlChecks enum
• chore(docs): Add checks to url method in string.md documentation
• chore(docs): Updated Quick Start guide in doc/quick-start.md to include Flutter example

Full Changelog: https://github.com/albetnov/validasi/compare/v0.0.6...v0.0.7

0.0.8

What's Changed

• rewrite most of GroupValidator code for better maintainability and readability
• Renamed on method to using to improve clarity
• Added extend method to allow extending the existing validator in group
• New validateMap and validateMapAsync methods to validate a map of values against the group schema.

Breaking Changes

• on method in GroupValidator has been renamed to using. Update your code accordingly.
• Invalid field will return ValidasiException("Field '$field' is not found in the schema"). Impacted method (validate, validateAsync)
• Unset field will return ValidasiException("Field is not set. Use 'using' method to set the field."). Impacted method (validate, validateAsync)

Full Changelog: https://github.com/albetnov/validasi/compare/v0.0.7...v0.0.8

0.0.9

What's Changed

• Refactored using method to return GroupValidatorUsing instead of GroupValidator to improve DX and better isolation

Breaking Changes

• using method in GroupValidator now returns GroupValidatorUsing instead of GroupValidator. Update your code accordingly.
• validate and validateAsync methods in GroupValidator is now removed. It could only be used in GroupValidatorUsing class.

// before
GroupValidator(...).validate(); // static check: OK
// after
**Full Changelog**: https://github.com/albetnov/validasi/compare/v0.0.7...v0.0.8
GroupValidator(...).using('field').validate(); // static check: OK
GroupValidator(...).validate(); // static check: ERROR

Full Changelog: https://github.com/albetnov/validasi/compare/v0.0.8...v0.0.9