How to Version and Test Your Login Flow Like Any Other Part of Your Stack

May 16, 2025

3 mins

Matt (Co-Founder and CEO)

Keywords: version control for auth, test login flows, auth in CI/CD, authentication DSL

Auth shouldn’t be a black box

Most authentication tools treat login flows like static config — or worse, something you click through in a dashboard.

But for modern teams shipping with AI tooling, CI/CD pipelines, and infrastructure-as-code… that approach doesn’t scale.

You version everything else.
Why not your login flow?

The Problem with Traditional Auth Workflows

  • No staging

  • No rollback

  • No Git history

  • No test environment parity

  • No way to preview before going live

Auth is usually the one part of your stack you can’t treat like code — until now.

Introducing Version-Controlled Authentication

With Prefactor, your login flow is written in a DSL and lives in your codebase.

You can:

  • Branch and preview new login flows

  • Deploy to staging before pushing to prod

  • Review changes in PRs

  • Roll back if needed

  • Include auth logic in CI/CD

Example flow:


Want to switch to magic links? Just change the flow and push it.

Staging New Flows Should Be Standard

Let’s say you want to test a magic link login without touching prod:

  1. Create a new flow in a feature branch

  2. Deploy to your staging environment

  3. Test in isolation

  4. Merge to main once you’re confident

Your product stays stable. Your auth stays clean. Your team stays fast.

Why This Matters for AI-Built Teams

If you’re building with Cursor, Windsurf, or using LLMs to scaffold your app, you’re already moving fast.

But unless your infrastructure keeps up — including auth — you’ll hit a wall.

Prefactor lets you:

  • Version auth

  • Test safely

  • Roll back instantly

  • Stay in flow, even while deploying security-critical code

TL;DR

🚫 No more copy-paste config
🚫 No more “just push it and hope”
✅ Version, test, and ship your login flows like any other code
✅ Make auth part of your dev workflow — not a separate system

Auth Should Live in Your Stack

Treat your authentication like infrastructure — because it is.

👉 Start versioning login flows with Prefactor now