Cqrs Php Laravel Package

Product Decisions This Supports

• Adoption of Domain-Driven Design (DDD) patterns in PHP-based systems, particularly for teams prioritizing separation of concerns, bounded contexts, and explicit command/query segregation.
• Microservices or modular monoliths where CQRS simplifies scaling read/write operations independently (e.g., high-traffic APIs with complex business logic).
• Roadmap for decoupling business logic from persistence layers, enabling easier testing, maintenance, and future-proofing of architecture.
• Build vs. Buy: Justifies buying this lightweight package over building a custom CQRS implementation if the team lacks DDD expertise or needs a quick, opinionated starting point.
• Use Cases:
  • E-commerce platforms (e.g., order processing vs. inventory queries).
  • SaaS applications with heavy transactional workloads (e.g., user subscriptions, analytics).
  • Legacy systems requiring gradual DDD adoption without full rewrite.

When to Consider This Package

• Avoid if:
  • Your team lacks DDD/CQRS familiarity (steep learning curve for command/query separation).
  • You need Event Sourcing (this package explicitly excludes it).
  • Your project requires advanced event handling (e.g., sagas, event versioning).
  • You’re using non-Symfony frameworks (SymfonyBundle integration is limited; vanilla PHP usage is minimal).
  • Performance is critical: The package’s simplicity may not optimize for high-throughput systems (e.g., real-time bidding).
• Look elsewhere if:
  • You need query-side optimizations (e.g., GraphQL, read models) beyond basic command handling.
  • Your stack is non-PHP (e.g., Node.js, Go) or uses alternative PHP frameworks (Laravel’s built-in service containers may conflict).
  • You require enterprise-grade CQRS (e.g., Axoniq CQRS for Java/Kotlin).

How to Pitch It (Stakeholders)

For Executives: "This MIT-licensed package lets us adopt Command Query Responsibility Segregation (CQRS)—a battle-tested pattern for scaling complex PHP applications—without reinventing the wheel. By separating read/write operations, we can optimize performance, simplify maintenance, and future-proof our architecture for modular growth. It’s a lightweight, Symfony-compatible solution that aligns with DDD principles, reducing technical debt while keeping costs low."

For Engineers: *"This package provides a minimalist CQRS bus for PHP, perfect for teams already using DDD. Key benefits:

• No Event Sourcing overhead: Pure CQRS for command handling.
• Symfony integration: Works seamlessly with dependency injection (via black_cqrs.handler tag).
• Laravel-friendly: Can be adapted via service containers (though not natively supported).
• Inspired by Doctrine/LiteCQRS: Proven design patterns from the PHP ecosystem. Tradeoff: Limited query-side features, but ideal for command-heavy workflows (e.g., payments, workflows)."*