Validation Laravel Package

Product Decisions This Supports

• Build vs. Buy: Buy—avoids reinventing validation logic, reducing dev time and maintenance overhead. Ideal for teams prioritizing speed and reliability over customization.
• Feature Roadmap:
  • User Input Validation: Replace manual checks (e.g., regex, filter_var) with fluent, composable rules (e.g., v::email()->notBlank()).
  • API/Data Integrity: Enforce strict validation for incoming requests (e.g., v::numericVal()->between(1, 100) for pricing fields).
  • Form Handling: Integrate with Laravel’s Request validation to standardize rules across frontend/backend (e.g., v::attributes() for DTOs).
  • Error Handling: Replace generic 422 Unprocessable Entity responses with granular error messages (e.g., ResultQuery for nested failures).
  • Performance: Optimize validation pipelines (e.g., shortCircuit() to fail fast on dependent fields like subdivisionCode requiring countryCode).
• Use Cases:
  • Laravel Forms: Replace Illuminate\Validation for complex nested validation (e.g., multi-step wizards with dynamic rules).
  • Microservices: Validate inter-service payloads (e.g., v::factory() to dynamically check confirmation against password).
  • Legacy Systems: Migrate away from ad-hoc validation (e.g., regex in controllers) to maintainable, testable rules.
  • Attribute-Based Validation: Use PHP 8 attributes (e.g., [#[Email]] public string $email) for declarative DTO validation.

When to Consider This Package

• Adopt if:
  • Your team uses Laravel/PHP and needs fluent, composable validation beyond basic Laravel rules.
  • You require fine-grained error reporting (e.g., nested paths like .user.address.city).
  • Your validation logic is complex or dynamic (e.g., dependent fields, custom business rules).
  • You want to reduce boilerplate (e.g., replace if (!filter_var($email, FILTER_VALIDATE_EMAIL)) with v::email()->assert($email)).
  • Your project uses PHP 8.5+ (v3.0 requirement) and can handle breaking changes from v2.x.
• Look elsewhere if:
  • You need minimal dependencies (this package adds ~20+ validators with optional dependencies like ramsey/uuid).
  • Your validation is simple (e.g., basic Laravel rules suffice).
  • You’re locked into PHP <8.5 (use v2.x, but it’s deprecated).
  • You prioritize custom exception handling over unified ValidationException.
  • Your team lacks PHP 8+ features (e.g., attributes for v::attributes()).

How to Pitch It (Stakeholders)

For Executives: "Respect\Validation lets us reduce bugs and tech debt by replacing manual input checks with a battle-tested, fluent API (150+ validators). It cuts validation dev time by 40%+ while improving error clarity—critical for user-facing forms and API integrations. The MIT license and 6K+ stars mean it’s enterprise-ready, and its attribute-based validation aligns with modern PHP practices. Migration is straightforward for Laravel teams, with payoffs in maintainability and scalability."

For Engineers: *"This replaces:

• Spaghetti validation (e.g., if (!preg_match(...))) with chainable rules (v::email()->notBlank()).
• Generic 422 errors with actionable messages (e.g., ResultQuery for nested failures).
• Manual DTO checks with PHP 8 attributes (#[Email] public $email). Key wins:
• Faster iteration: Dynamic validators (e.g., v::factory() for dependent fields).
• Better tests: 100% coverage for 150+ validators means fewer edge-case bugs.
• Laravel synergy: Works alongside Illuminate\Validation but handles complex cases it can’t. Tradeoff: PHP 8.5+ required (v3.0), but worth it for the result-based validation and short-circuiting features."*