Changelog

All notable changes to Pedantigo are documented here.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

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[1.1.2] - 2026-01-06

Changed

What's Changed

• fix(constraints): support decimal values in min/max constraints by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/10
• test(dive): comprehensive dive tests for all constraints by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/11
• feat(constraints): implement skip_unless with SkipConstraint interface by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/12

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[1.1.1] - 2026-01-05

Changed

What's Changed

• fix(required): allow zero values when JSON key is present in nested structs by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/9

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[1.1.0] - 2025-12-27

Changed

What's Changed

• feat(constraints): add validator-compatible constraints and APIs by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/8

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[1.0.0] - 2025-12-21

Changed

What's Changed

• feat: add go-playground/validator v10 compatible constraints and features by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/6
• test(schema): add JSON Schema spec compliance validation by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/7

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[0.1.2] - 2025-12-20

Changed

• docs: improve documentation discoverability and examples by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/4
• feat(extras): implement ExtraAllow mode for capturing unknown JSON fields by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/5

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[0.1.1] - 2025-12-20

Changed

• feat: custom struct tag support + CI/CD improvements by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/1
• fix: flaky test due to map iteration order by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/2
• test: improve coverage for deserialize and schemagen packages by @tushar2708 in https://github.com/SmrutAI/pedantigo/pull/3

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[0.1.0] - 2024-12-18

Initial release of Pedantigo - Pydantic-inspired validation for Go.

Added

Core Validation

• Struct tag-based validation with pedantigo:"..." tags
• 100+ built-in validation constraints
• Detailed error messages with field paths
• Support for nested structs and slices

Simple API (Recommended)

• Unmarshal[T]() - Parse JSON and validate in one call
• NewModel[T]() - Create validated instances from JSON, maps, or structs
• Validate[T]() - Validate existing struct instances
• Schema[T]() - Get cached JSON Schema
• SchemaJSON[T]() - Get JSON Schema as bytes
• Marshal[T]() - Validate and marshal to JSON
• Dict[T]() - Convert struct to map

Validator API (Advanced)

• Validator[T] struct for custom configurations
• ValidatorOptions for strict mode, extra fields handling
• ExtraFieldsMode: Ignore, Forbid, or Allow extra JSON fields

JSON Schema Generation

• Automatic generation from struct definitions
• 240x speedup with caching (via SchemaRegistry)
• OpenAPI 3.0 compatible output

Streaming Validation

• StreamParser for partial JSON validation
• Real-time validation of LLM streaming responses
• Progress callbacks for incremental updates

Discriminated Unions

• Union[A, B, C] type for type-safe unions
• Automatic discriminator detection
• JSON Schema oneOf support

Field Types

• Secret[T] - Masks sensitive values in logs/JSON
• Pointer support for optional fields
• Custom type support via Validatable interface