All
Articles 189,434Blog Posts 171,394Tech Tutorials 50,801Research Papers 36,786News 23,170
⚡ AI Lessons
Dev.to · Mike Jung
🔧 Backend Engineering
⚡ AI Lesson
9h ago
I Missed @Service in Node.js, So I Built It with Express
Let the browser console create the files At first, the browser console was only a...
Medium · Programming
🔧 Backend Engineering
⚡ AI Lesson
15h ago
Qué es un WebSocket y cuándo usarlo (frente a un webhook)
Definición, cómo opera, una analogía con llamadas telefónicas y cuándo elegir WebSocket o webhook en tu próximo proyecto. Continue reading on Medium »
Dev.to AI
🔧 Backend Engineering
⚡ AI Lesson
16h ago
I Built Tic-Tac-Toe the Old Way — Before Coding Agents
What I did. I recently built a multiplayer Tic-Tac-Toe backend in Go. At first, it sounds almost too simple to be worth writing about. It has a 3×3 board. Two p
Dev.to · Rudratosh Shastri
🔧 Backend Engineering
⚡ AI Lesson
20h ago
10 Years In, Everything I Was Proud Of As a Junior Was Wrong
A decade of backend engineering taught me that the things I thought made me good were the things holding me back. Here's what actually mattered.
Medium · Programming
🔧 Backend Engineering
⚡ AI Lesson
2d ago
I Gave the Right Answer in a Senior Backend Interview. The Interviewer Changed One Constraint and My
I had prepared the architecture most Senior Backend Engineers would recognize immediately, including PostgreSQL as the source of truth… Continue reading on Java
Medium · Python
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Django vs Flask vs FastAPI: Which Python Web Framework Should You Learn in 2026?
A beginner learning Python web development in 2026 faces a strange problem. Continue reading on Medium »
Medium · Programming
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Our Spring Boot API Was Fast for Months. Then Production Data Exposed What Hibernate Was Really
The endpoint had survived months of releases, ordinary production traffic, load tests, and code reviews without giving us any reason to… Continue reading on Med
Medium · Programming
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Our Spring Boot API Was Fast in Testing. One Hibernate Query Turned It Into 1,247 SQL Queries
The endpoint looked harmless because it returned a list of customers with their recent orders, the code was short enough to understand… Continue reading on Medi
Medium · Python
🔧 Backend Engineering
⚡ AI Lesson
2d ago
When “Global” Isn’t Global: The Hidden Failure Mode of In-Memory State in FastAPI
A rate limiter can look correct in development and still fail in production. Continue reading on Medium »
Dev.to · Edgar Nahama Alochi
🔧 Backend Engineering
⚡ AI Lesson
3d ago
The Cost of Cleverness: A Backend Engineer’s Guide to Strategic Simplicity
There is a phase many backend engineers go through where making code shorter, smarter, and more...
Dev.to · Marc Keebler
🔧 Backend Engineering
⚡ AI Lesson
3d ago
Designing Better Backend Systems for Data That Cannot Be Lost
Some application data can be recreated without much trouble. A cached API response can be generated...
Dev.to · QuintonShaw1483
🔧 Backend Engineering
⚡ AI Lesson
3d ago
DNS Record Deletion in Node.js: List Identity Before Delete
Short answer: for a single DNS record deletion, list the zone, match exactly one record by name and...
Dev.to · Avery Lin
🔧 Backend Engineering
⚡ AI Lesson
3d ago
Compile HTTP Error Indexes From Exception Classes; Humans Own Recovery Copy
Generated error pages should list only codes, HTTP statuses, and source locations the parser can...
Medium · JavaScript
🔧 Backend Engineering
⚡ AI Lesson
4d ago
JavaScript Map: Store and Find Values Using Keys
When we need to store data and later find it using a unique key, JavaScript’s Map collection is very useful. Continue reading on Medium »
Dev.to · Gumbo Sveins
🔧 Backend Engineering
⚡ AI Lesson
4d ago
Auth Middleware Should Not Guard Payment Webhooks
You ship Clerk (or NextAuth, or a custom session matcher). Every /api/* route now requires a logged...
Medium · Programming
🔧 Backend Engineering
⚡ AI Lesson
6d ago
Common Server Action and API Route Errors in Next.js (and How to Fix Them)
Server Actions made a lot of backend logic in Next.js dramatically simpler — no separate API route needed for a form submission. But they… Continue reading on M
Medium · AI
🔧 Backend Engineering
⚡ AI Lesson
6d ago
11 Tiny Bash Scripts That Save Me Time Every Day
Find the process blocking a port, compare messy API responses, and keep the build log you always forget to save. Continue reading on Medium »
Medium · Programming
🔧 Backend Engineering
⚡ AI Lesson
6d ago
11 Tiny Bash Scripts That Save Me Time Every Day
Find the process blocking a port, compare messy API responses, and keep the build log you always forget to save. Continue reading on Medium »
Medium · Programming
🔧 Backend Engineering
⚡ AI Lesson
6d ago
I Thought My Senior Backend Interview Answers Needed More Detail. Then I Started Timing Them.
I had spent weeks making my system design and production answers more complete. Continue reading on Let’s Code Future »
Medium · Programming
🔧 Backend Engineering
⚡ AI Lesson
6d ago
I Failed Several Senior Backend Interviews After Giving Answers I Thought Were Correct.
The questions I remembered were about databases, queues, caching and production incidents. The useful part turned out to be what happened… Continue reading on J
Medium · Python
🔧 Backend Engineering
⚡ AI Lesson
6d ago
I Failed Several Senior Backend Interviews After Giving Answers I Thought Were Correct.
The questions I remembered were about databases, queues, caching and production incidents. The useful part turned out to be what happened… Continue reading on J
Medium · DevOps
🔧 Backend Engineering
⚡ AI Lesson
6d ago
Should We Use Valkey Instead of Redis?
If you have worked with backend systems, Kubernetes, caching, or distributed applications, there is a very good chance you have used Redis. Continue reading on
Medium · Programming
🔧 Backend Engineering
⚡ AI Lesson
6d ago
Authentication in ASP.NET Core
A deep-dive walkthrough of authentication in ASP.NET Core — covering the ClaimsPrincipal/ClaimsIdentity model everything else builds on… Continue reading on Med
Dev.to · Prajwal Patil
🔧 Backend Engineering
⚡ AI Lesson
1w ago
How I Built Authentication in Go and React: Doing It Right
Every tech blog will tell you the same thing: don’t roll your own auth. It makes sense not to do that...
DeepCamp AI