Introduction
In microservices architecture, it's generally considered a bad practice to make synchronous request/response calls across service boundaries — especially using HTTP. The ideal model is to design services to be autonomous, decoupled, and event-driven.
However, in reality, there are times when one service needs to fetch data from another — and when that happens, most developers instinctively reach for a direct HTTP call. It's simple, familiar, and it seems fast and efficient.
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