https://shaaf.dev/tags/microservices/Recent content in Microservices on Shaaf's blogHugoen-usTue, 01 Sep 2026 00:00:00 +0000https://shaaf.dev/post/decomposing-a-monolith-into-microservices-with-call-graph-analysis/Tue, 01 Sep 2026 00:00:00 +0000https://shaaf.dev/post/decomposing-a-monolith-into-microservices-with-call-graph-analysis/<h1 id="decomposing-a-monolith-into-microservices-with-call-graph-analysis">Decomposing a Monolith into Microservices with Call Graph Analysis</h1> <p>Splitting a monolith into microservices is a problem of finding boundaries. The wrong boundaries produce distributed monoliths &ndash; microservices that cannot be deployed independently because they call each other synchronously for every operation. The right boundaries follow natural seams in the code: clusters of functions that are tightly coupled internally but loosely connected to the rest of the system. This post picks up the CoolStore monolith from <a href="https://shaaf.dev/post/migrating-coolstore-monolith-to-quarkus-with-rgctl/">migrating it to Quarkus with rgctl</a> and applies the same graph analysis to the next question: where to cut it into services.</p>