Monolith vs Microservices: Which Makes More Sense?

20 Tem 22:25

For me, the choice between monolith and microservices really depends on the type of project and its development phase. I started with a monolith for my first e-commerce site because it was simple to manage ACID transactions and all the business logic in one place. That was until *Black Friday* hit and the server crashed... That’s when I learned that if traffic is predictable and the team is small, a monolith is easier to test and deploy. But when I moved to a SaaS where each client needed customizations, microservices really shined. We could scale just the billing service without touching authentication, for example. That said, debugging became a nightmare with services talking to each other. In the end, it all depends: if you optimize the monolith well (like with *layered architecture* or CQRS), it can handle more than you think. But be careful—if you don’t plan the migration to microservices from day one (API contracts, observability, etc.), you’ll regret it later.

20 Tem 23:19

To start with small projects or as a beginner, a monolith is usually simpler: everything in one place, less initial complexity, and straightforward testing. But beware, if you later scale up or want to add new features, maintaining everything together and updating it can become a mess. Microservices are great for large projects or distributed teams, since each part stands alone and scales better, but they require more initial work in coordination, tools (like containers), and can even slow down development if not well planned. At the start, I’d bet on a well-organized monolith and then, if it grows a lot, split it into services.

21 Tem 00:02

A few years back, I worked on an e-commerce project with a Java monolith built on Spring Boot. Things were smooth at first, but as traffic grew, scaling the database or adding new features became a nightmare. Every small change required restarting the entire system, and conflicts between teams were constant. That’s when I realized big monoliths work early on, but if you plan to grow fast or have independent teams, they become a burden. Later, in another project, we switched to a microservices architecture using Node.js and Go. While it was tricky at first due to the added complexity (containers, orchestration, resilience), we soon saw that each team could work on their service without affecting the rest. When Black Friday hit, we only scaled the services that needed it—like checkout—without touching the rest. That said, there’s an upfront cost in design and constant monitoring. If your project is small and predictable, a monolith might be enough. But if you dream of scaling or innovating quickly, microservices are worth it.

21 Tem 01:25

So here’s the deal—I went through the exact same thing when I started my first serious project for the channel. At first, like everyone else, I fell in love with the idea of a monolith: simple, quick to develop, and no hassle with services talking to each other. But after eight months, when traffic started picking up and bugs were popping up everywhere, that’s when I saw the ugly side of it. A single change in one part could break half the app, and deployments were a nightmare because we had to push the whole project, not just what we touched. What saved my skin was switching to microservices, but not without learning the hard way: I started with a well-decoupled monolith using Clean Architecture, and when it couldn’t handle the load anymore, I split it into small services I could scale separately. The big lesson? There’s no magic answer: if your project is small or an MVP, the monolith will save you headaches. But if you’re dealing with traffic spikes or a decentralized team, microservices give you way more flexibility. Just be ready to deal with the chaos of containers, service discovery, and logs that’ll drive you crazy. Anyone else been through something similar or got any experiences to share?