Microservices vs Monolith: When to Make the Switch

The monolith vs microservices debate is one of the most discussed topics in software architecture. The truth is, there is no one-size-fits-all answer. A monolith is perfectly fine for most startups and early-stage products. The key is knowing when to transition.

Signs you might need microservices include: deployment bottlenecks where teams block each other, scaling issues where you need to scale one component independently, and team size exceeding 8-10 engineers working on the same codebase.

The strangler fig pattern is the safest approach to migration. You gradually extract services from the monolith, routing traffic to new services while keeping the monolith running. This eliminates the risk of a big-bang rewrite.