Feather Validation

A validation library for server-side Swift projects.

Features

• Key-value based validation primitives
• Composable rules for string and integer validation
• Async and grouped validation strategies
• Foundation-based rules for URL, email, password, and character sets

Requirements

• Swift 6.1+

• Platforms:

  • Linux
  • macOS 15+
  • iOS 18+
  • tvOS 18+
  • watchOS 11+
  • visionOS 2+

Installation

Use Swift Package Manager; add the dependency to your Package.swift file:

.package(url: "https://github.com/feather-framework/feather-validation.git", exact: "1.0.0-beta.1"),

Then add FeatherValidation (and optionally FeatherValidationFoundation) to your target dependencies:

.product(name: "FeatherValidation", package: "feather-validation"),
.product(name: "FeatherValidationFoundation", package: "feather-validation"),

Usage

Validation examples are available in:

• Tests/FeatherValidationTests/FeatherValidationTestSuite.swift
• Tests/FeatherValidationFoundationTests/Rule+CharacterSetTestSuite.swift
• Tests/FeatherValidationFoundationTests/Rule+EmailTestSuite.swift
• Tests/FeatherValidationFoundationTests/Rule+PasswordTestSuite.swift
• Tests/FeatherValidationFoundationTests/Rule+URLTestSuite.swift

Warning

This repository is a work in progress, things can break until it reaches v1.0.0.

Development

• Build: swift build
• Test: make test
• Format: make format
• Lint: make lint

Contributing

Pull requests are welcome. Please keep changes focused and include tests for new logic.