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GDS K S1d ago • 5 min read
I've built auth six times. Here's the system I would build today
A 12 part series on building real authentication from scratch in Next.js and Postgres. Start here fo...
#authentication#webdev#nextjs#tutorial
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GDS K S1d ago • 10 min read
The 8 tables behind a real auth system (Postgres schema, explained column by column)
Day 2 of the auth from scratch series. The full Postgres schema for users, sessions, OAuth, reset to...
#postgres#authentication#database#webdev
3 0
GDS K S1d ago • 9 min read
How to build a register user flow in Next.js 15 (frontend, backend, database, email)
A working register user flow in Next.js 15. Frontend form with real validation, a server endpoint th...
#nextjs#authentication#webdev#tutorial
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GDS K S1d ago • 7 min read
How to build a secure password reset flow in Next.js (the short version)
Password reset is where most apps leak. Here is a working Next.js 15 implementation, the 3 security ...
#nextjs#authentication#webdev#tutorial
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GDS K S1d ago • 7 min read
I replaced Auth0 with an open source library in 30 minutes. Here is what broke.
A real Auth0 migration to kavachOS, with the bill, the diff, the things that broke in prod, and the ...
#authentication#opensource#javascript#devops
3 1
GDS K S1d ago • 10 min read
How to build a login flow in Next.js 15 (sessions, cookies, CSRF, and the timing attack nobody talks about)
A working login flow in Next.js 15. The form, the session cookie, CSRF, remember me, and a look at t...
#nextjs#authentication#webdev#tutorial
2 0
Juma Paul2d ago • 3 min read
I Built a Self-Hosted Auth System Like Clerk — Here's What I Learned
Every serious project needs authentication. As someone early in my career, I kept running into the.....
#authentication#webdev#softwareengineering#node
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Abhishek Sharma3d ago • 4 min read
Building Authentication From Scratch in Go — No Libraries, No Magic
In Part 2, I had a working REST API with two endpoints. You could create entries and query them. But...
#go#buildinpublic#authentication#backend
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Yogesh Yadav1d ago • 7 min read
Authentication on the Frontend - More Than Just Tokens
The decisions behind auth are more consequential than most developers realize. In this article we'l...
#frontend#authentication#react#javascript
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Cara JungApr 13, 2026 • 5 min read
Pick Your Auth: An Interactive Guide
Most auth tutorials focus on how authentication works such as how to drop in a component, spin up a....
#authentication#nextjs#webdev#security
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AliFathy-19992d ago • 2 min read
Designing Secure Authentication with Access & Refresh Tokens
Table of Contents Why Tokens Exist Access Token Refresh Token Authentication Flow Why Not...
#authentication#security#backenddevelopment#jwt
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Max Friedmann4d ago • 3 min read
API Key Authentication in smallstack: How We Built Secure External Access
One of the core promises of a platform like smallstack is that it plays well with the rest of your.....
#authentication#rest#api#key
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Babisha S4d ago • 2 min read
Day 1: Building My Smart Reconciliation and Audit System from Scratch
Today I started building a Smart Reconciliation and Audit System , a real enterprise grade project.....
#springboot#java#beginners#authentication
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Mahdi BEN RHOUMA5d ago • 6 min read
Fix Supabase Auth Session Not Persisting After Refresh
Fix Supabase auth sessions disappearing after page refresh in Next.js 14. Learn why this happens and...
#supabase#authentication#nextjs#sessionmanagement
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Sietrix Technologies3d ago • 3 min read
Authentication Systems Explained: JWT vs Sessions (What You Should Actually Use in 2026)
Authentication is one of those topics every developer uses—but not everyone truly understands. At.....
#authentication#webdev#security#javascript
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Sayeed Kamal20h ago • 1 min read
Introduction
Hey Dev.to, 👋 I'm Sayeed — Field Application Engineer at Hirsch Secure Inc. in Erie, PA, where I...
#cybersecurity#fido2#authentication#smartcard
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Marina Kovalchuk5d ago • 12 min read
Securing HTTP with mTLS: Managing SSL/TLS Certificates for Mutual Authentication
Introduction to SSL/TLS and mTLS Securing HTTP communication is no longer optional—it’s...
#mtls#security#certificates#authentication
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Pico1d ago • 2 min read
What the Vercel Incident Teaches Us About Agent Credential Management
Vercel's April 2026 breach exposed a structural problem: credentials stored in platform env vars hav...
#security#ai#devops#authentication
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Anton Minin Baranovskii6d ago • 2 min read
The Paradox: The More Secure the Product, the Less People Trust It
Over the past few days, early feedback on the Toqen mobile app has been coming in. The reaction was...
#security#authentication#cryptography#opensource
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Mahdi BEN RHOUMA1d ago • 12 min read
Handle Supabase Auth Errors in Next.js Middleware
Learn how to properly handle Supabase authentication errors in Next.js middleware. Get tested soluti...
#supabase#authentication#nextjs#middleware
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H33.ai4d ago • 1 min read
Building Multi-Tenant Auth Without Auth0 (And Why We Did It)
The Auth0 Tax Auth0 charges per MAU. At scale, you are paying $0.05-0.23 per user per...
#authentication#saas#security#devops
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IAMDevBoxApr 13, 2026 • 5 min read
Understanding PingFederate Authentication Policy Contracts
Authentication Policy Contracts in PingFederate define how attributes and claims are processed durin...
#pingfederate#authentication#claims#attributes
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H33.ai4d ago • 1 min read
Why We PQ-Anchor Every Auth Event to Bitcoin (And You Should Too)
The Problem With Auth Logs Every authentication system keeps logs. But logs are mutable —...
#security#authentication#bitcoin#webdev
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Atlas Whoff3d ago • 2 min read
Clerk vs NextAuth vs Supabase Auth in 2026: Which to Use for Your SaaS
Three SaaS apps, three auth stacks. When Clerk is worth the MAU cost, when NextAuth makes sense, and...
#nextjs#authentication#saas#webdev
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