The Real Truth About Event-Driven Architecture

Event-driven architecture gets a lot of love for “loose coupling” and infinite scalability, but it isn’t a silver bullet. You still have temporal coupling at runtime and design-time contracts to manage, and scaling one part of your system often just shifts the bottleneck somewhere else.

Another pitfall is complexity—if your business logic spans a maze of services and events, that’s a workflow smell. Plus, guaranteeing global event ordering is a tough fight. Instead, carve clear boundaries, keep each service owning its own data and context, and avoid orchestrating huge, cross-service dance routines.

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