IT

Ensuring Data Consistency in EDA: The Transactional Outbox Pattern Explained

Let’s be brutally honest. Without the Transactional Outbox Pattern, your event-driven system is nothing more than a digital con artist. It’ll gladly take your customer’s money, and the moment it crashes, it ghosts them completely. You’re not building a reliable service; you’re building an automated rip-off machine. That might sound harsh, but the underlying risk…

The Limits of Spring Events: Why Microservices Demand Durable and Reliable Messaging

What if I told you the Spring Event logic you just wrote, the code you believe is clean and decoupled, is actually a poison slowly sickening your entire system? This is the harsh reality of the limits of Spring Events when applied outside of a monolith. Inside a single application, Spring Events are a vitamin….

Getting Started with EDA: Decoupling Spring Boot Applications using Spring Events

That “simple” change that just broke three unrelated modules? That isn’t a bug—it’s a symptom of a disease called tight coupling. And every time you make a direct service call, you’re making the disease worse. Your codebase becomes a tangled web of dependencies, making every future change a nightmare of unpredictable side effects. Most developers…

Monolith Decomposition: Business-First Boundaries, Microservices Second

Monolith Decomposition isn’t a refactor—it’s an organizational reset. Carve along the business seams—code follows. Principled Microservices Playbook This article is a standalone deep dive on how to properly decompose a monolith and is a chapter in our comprehensive series. You don’t need any prior context to get the full value from this post. To explore…

Spring @Transactional: Class vs Method — A Critical Design Choice

Most developers see @Transactional as a magic spell for data integrity. But a deeper understanding reveals it’s a powerful policy enforced by a proxy. This perspective immediately leads to a critical design question that is often overlooked: where should this policy be declared? This is not a simple coding convention. This decision directly impacts your…

@Transactional is Not Enough: A Deep Dive into Spring’s PlatformTransactionManager

We’ve all seen it. A critical operation fails halfway through, leaving data in a corrupted, inconsistent state. The @Transactional annotation was supposed to be the safety net, but it failed. The problem isn’t the tool. It’s the blind faith we place in it. To build truly resilient systems, we can’t just trust the magic. We…

The Two-Pizza Team Myth: The True Cost of Microservices

Two-Pizza Team Myth says small squads unlock endless agility—until the invoice shows up. Principled Microservices Playbook This article is a standalone deep dive on how to properly decompose a monolith and is a chapter in our comprehensive series. You don’t need any prior context to get the full value from this post. To explore all…

“Just Add an Index” Is Terrible Advice. Here’s Why.

Let’s be honest. Your query is slow. You ran EXPLAIN, you saw the execution plan, and you did the obvious thing: you added an index. But the result was disappointing. The speed didn’t improve much, and in some cases, it might have even gotten slower. Why? Wasn’t an index supposed to be the silver bullet? This…

Monolith vs. MSA? Stop Asking “Which,” Start Asking “Why.”

Architect’s Handbook for MSA This article is a standalone deep dive on how to properly decompose a monolith and is a chapter in our comprehensive series. You don’t need any prior context to get the full value from this post. To explore all related topics, please visit the full series index. -> Explore the Full…

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