Software Architecture

The decisions you make about how to organize code define everything that comes after — how fast you can ship, how easy it is to scale, how painful it is to fix bugs. Good architecture is invisible. Bad architecture is the reason half the team is always in a meeting.

Monolith
All-in-one
my-app (single deploy)
UI Layer
Business Logic
Data Access Layer
Database
Simple to start. Painful at scale.
Microservices
Distributed
Auth API
:3001
User API
:3002
Orders API
:3003
Payments
:3004
Notifications
:3005
Search
:3006
Complex to build. Built to scale.