Can I split a monolith into microservices later?
Yes, if you keep modules decoupled. Each feature should have its own routes, controllers, models, and services. Avoid cross-module database queries and treat other modules as black boxes.
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More FAQs in Microservices vs Monolith: When to Use Each
When you have a small team, a new product with unclear requirements, need to ship fast, or no dedicated DevOps. For most projects, a monolith is the right starting point.
When you have multiple teams, parts of the app scale differently, you need independent deployments, or the monolith has become unmaintainable. The cost is real, so only use them when the payoff is real.
Network calls instead of function calls, distributed tracing, service discovery, API gateways, data consistency across services, and CI/CD for each service. Each costs time and headcount.
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