I'm trying to enhance the architecture of my backend web app built with Node.js and NestJS. Currently, I'm using a straightforward architecture with controllers, services, and models, but I've noticed that my services are getting too large and complex to manage effectively. While I could break them down into smaller services, that leads to an overwhelming number of services, which is also hard to maintain. I'm looking for suggestions on good practices or approaches to adopt that will help improve this situation without falling into the trap of overengineering.
3 Answers
Improving architecture is always a balancing act! Consider principles like "locality of behavior" and "separation of concerns." Each offers its own trade-offs. For example, using microservices can help scale and manage larger teams, but for smaller projects or solos, sticking with a monolith might be simpler and more productive.
Sometimes you end up choosing the fastest solution, which can lead to tech debt. However, good design patterns should become second nature rather than overthought. Learn the patterns, but also know when they're beneficial. Being a senior dev is about knowing when to apply the right pattern without overcomplicating things.
It's a common misconception that senior developers avoid using design patterns. They actually utilize them in smart ways that's appropriate for their projects. The key is to understand when a design pattern fits and when it doesn't. Don't force patterns where they aren't necessary; that can lead to added complexity without real benefit.
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