From Backend to Breach-Aware Part 0: The Router That Was Built
Dine Flow was a six-person cohort project, a restaurant inventory and order-management platform, built in about six weeks. Six people means six sets…
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Client API Key — Design (Lite) ออกแบบ API key service to service ให้เบาและยังถูกต้อง
ออกแบบ API key สำหรับการเรียกกัน service to service ให้เบาและยังถูกต้อง วันหนึ่งจะมีอีกทีมมาขอเรียก service ของคุณ และคุณต้องรู้ให้ได้ว่าใครเป็นคนยิ…
Your Database Said "Success." Your Message Broker Said "Try Again."
This is where distributed systems get interesting. If you've worked with backend systems long enough, you've probably written code that looks roughl…
Real-time chatroom
I built a full-stack real-time chatroom application Live demo: https://realtime-chatrooms-frontend-703842083963.us-central1.run.app/ Github: https:/…
Shifting Left: How TDD Became the Foundation of SokoFlow's Core Engine
SokoFlow Build Log — Month 1 of 4 Last semester I set out on a new strategic plan to level up my software development skills through deliberate, pro…
Eventual Consistency Is Misunderstood by Most Engineers
I've interviewed dozens of engineers at the senior level. When I ask them to explain eventual consistency, most recite the textbook answer: "data wi…
Building a Production Grade Authentication System with NestJS
Building a Production Grade Authentication System with NestJS Security is not a feature you bolt on after the fact. It is an architectural decision…
Prisma vs Drizzle ORM: A Comprehensive Comparison
“Your ORM should fit your project, not just your taste.” A Practical Guide to Choosing Between Prisma and Drizzle ORM for Modern TypeScript Applicat…
Building devdevbuilds: where backend development meets design
Building devdevbuilds: combining backend projects, cybersecurity learning, and design assets I’m starting to use DEV Community as a place to documen…
AI-Powered Node.js: Why Node.js + AI Is Becoming a Powerful Combination
For the last few years, I've been working mostly with Node.js for building scalable APIs, backend services, and cloud-based applications. Recently,…
Library Oriented Architecture: The Most Interesting Architecture Pattern You've Probably Never Heard About
Hello! I'm Jairo Jr, your favorite Dev.to writter, or something like this 😄. Over the last few years, I've spent a lot of time studying software arc…
Mastering Node.js HTTP Module: Build Servers, REST APIs, and Handle Requests
Introduction to the HTTP Module Modern web applications rely heavily on communication between clients and servers. Whether you are building a REST A…
How the Internet Actually Works: Understanding Client-Server Architecture with Real Code
How the Internet Actually Works: Understanding Client-Server Architecture with Real Code The Big Picture: What Happens When You Visit a Website? Eve…
How to Build a REST API with Node.js and Express from Scratch
How to Build a REST API with Node.js and Express from Scratch Create a production‑ready RESTful API step‑by‑step using Node.js, Express, and modern…
How Data Access Breaks Down Under Load
Most database performance problems do not begin with obviously slow queries. In fact, many systems look perfectly fine early on. Queries execute qui…
From a For-Loop to a Fault-Tolerant Payout System (₹70L/month, 0 Duplicate Payments)
How we moved from a fragile loop-based payout system to a reliable, idempotent, and traceable architecture. Paying Money Is Easy. Paying It Correctl…