CQRS in Play Framework
Building Scalable and Maintainable Applications with Command Query Responsibility Segregation
Picture your Play Framework application handling thousands of concurrent users effortlessly, with read operations blazing fast while complex write operations maintain data integrity without bottlenecks. Your codebase is clean, testable, and each component has a single, well-defined responsibility. This book guides you through implementing Command Query Responsibility Segregation in Play Framework applications. You'll discover how to separate your read and write models to optimize each independently, leverage Play's reactive capabilities for event-driven architectures, and build systems that scale horizontally with ease. You'll learn when CQRS adds value and when it introduces unnecessary complexity. Through practical examples, you'll implement command handlers that enforce business rules, create optimized query models for lightning-fast reads, and handle eventual consistency gracefully. You'll explore event sourcing, build event stores, and create projections that serve your application's diverse read requirements. Whether you're building a new application or refactoring an existing one, you'll gain the knowledge to make informed architectural decisions and implement CQRS patterns that solve real problems without over-engineering your solution.
Est. Length
253 pages (12 chapters)
Language
English
Publication date
Oct 17, 2025
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