The Real Truth About Event-Driven Architecture

Event-driven architectures promise loosely coupled, infinitely scalable systems—but dive in and you’ll find it’s not that simple. This review teases apart the difference between design-time coupling (when your code is tightly linked) and temporal coupling (when services must wait for each other), and warns that scaling doesn’t eliminate bottlenecks, it just moves them around.

On top of that, stitching complex workflows across multiple services is a design smell waiting to happen. Instead, keep your event boundaries clean, think carefully about ordering guarantees, and resist the urge to let every part of your system become dependent on every other.

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