Monolith Architecture
Do not build microservices until you have fifty engineers. A monolith is easier to deploy and faster to develop. It reduces the complexity of your networking and database transactions. Keep your code modular within a single repo to scale efficiently.
What is Modular Monolith?
Modular Monolith is A single application that is organized into distinct internal sections based on business logic.
The 3 Core Benefits
Simple Operations
One Git repo and one CI pipeline make your life easy. You spend less time on DevOps and more time on your users.
Better Velocity
Small teams move faster when they do not have to manage API contracts between ten different services.
Strategy Deep Dive
Microservices are an organizational solution for huge companies. They are not a technical requirement for most web apps.
Deploying a monolith is a single step. You do not need to coordinate multiple versions of different services at the same time.
Debugging is much easier when all your code is in one place. You can trace a request from the UI to the database without complex logging tools.
Transactions are reliable in a single database. You avoid the "eventual consistency" issues that plague distributed systems.
Function calls in memory are faster than network calls between containers. Your application will be more responsive by default.
Focus on your product features instead of your infrastructure. Use a monolith to reach product market fit as fast as possible.
Scaling Strategy
Start Monolith
Build everything in one application. Use clear folder structures to separate your billing logic from your user logic.
Monitor Performance
Watch for bottlenecks in your code. Most issues can be solved with better database indexes or caching.
Extract Later
Only move a feature to a separate service if it has unique scaling needs. This should happen years into your journey.
Microservices (Early) vs. Monolith (Early)
| Feature | Microservices (Early) | Monolith (Early) |
|---|---|---|
| Build Time | Slow | Fast |
| Ops Overhead | High | Low |
Frequently Asked Questions
Does it scale?
Yes. Companies like Shopify and GitHub run massive monoliths. You can scale vertically for a very long time.
Team git conflicts?
Use feature flags and small pull requests. Good communication is more effective than splitting your code into pieces.
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