Real-World Case Studies

Real-World Case Studies | System Design

How to Scale an Application from 100 Users to 1 Million Users
ByFavour June 18, 2026June 18, 2026

System Design & Scalability June 2026 22 min read Architecture · DevOps · Databases ⚡ Quick Answer — What is the best way to scale an application? The best way to scale an application is incrementally: optimize your database with indexing and caching first, add a load balancer and horizontal servers next, introduce Redis…

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Real-World Case Studies

How to Design a REST API That Doesn’t Become a Nightmare Later
ByFavour June 15, 2026June 15, 2026

A practical guide for backend developers, full-stack engineers, and software architects who want to build APIs that age well. Introduction Imagine this: a small startup ships their MVP in six weeks. The backend is a Node.js REST API slapped together under pressure. Endpoints are inconsistent — some use /getUser, others use /users/profile. Fields are named…

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