#auth

You add "Sign in with Google" to your app, click the button, and Google shows one of these instead of...

A user signs up for your live app, clicks the confirmation link, and the browser...

Which Supabase auth method to trust on the server in Next.js: getClaims for pages, getUser for writes, and getSession never for authorisation. With code.

Set up Better Auth 1.7 in Next.js 16 with Prisma 7: route handler, server-action sign-in, proxy.ts session checks, cookie cache and query counts, all tested.

Sign-up works when you test it. Then real users sign up and the confirmation email never shows up, or...

Security controls around agent work matter. They are still not the same thing as an identity model for autonomous agents.

Supabase confirmation link fails, says 'Email link is invalid or has expired', throws 'PKCE code verifier not found', redirects to localhost or never arrives? The real causes in a Next.js app, how to tell which one you have, and the route I run in pr

I run a short link service for agents. Create a link, get back the short URL plus a one-time manage...

A comprehensive, production-ready guide to designing a secure authentication system using short-lived JWT access tokens, database-backed refresh token rotation, and HttpOnly cookies to mitigate XSS and CSRF vulnerabilities.

Microsoft Entra External ID is Microsoft's cloud-based CIAM service for customer-facing applications....

Almost every auth tutorial, including some of my own examples in earlier posts, uses...

Hello Dev Community! 👋 It is officially Day 181 of my full-stack engineering journey! Today, I dived...