In the rush to appear “modern,” teams slap together a spaghetti of micro‑services, gateways, and third‑party APIs without asking the simple question: what problem are we really solving? A bloated integration layer feels impressive on a slide deck, but in practice it becomes a single point of failure, a maintenance nightmare, and a massive cost sink. If you’re not able to sketch the end‑to‑end data flow on a napkin, you already have a design that’s too complex.
Instead of defaulting to an ever‑growing network of REST calls, adopt a domain‑driven, contract‑first approach. Keep the core business logic in a small, cohesive service that owns its data, and treat external APIs as adapters—thin, replaceable wrappers that translate to your internal model. This philosophy caps the surface area exposed to change, reduces latency, and makes testing trivial. In short, stop worshipping the API hype machine and start engineering for stability, simplicity, and real business value.
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