Sheet 03 — Case Study
DevOps dashboard and sign-in API
In active developmentDevSync
A DevOps overview site with a sign-in API, role-based access and Prometheus metrics, running entirely on Vercel.
The dashboard shows sample data today; live data is coming next.
The problem
A dashboard of system health is only useful if the right people, and only they, can see it, which starts with sign-in, roles and metrics that can be trusted.
Who it is for: Engineering teams that want one place to see the state of their systems.
What we built
- Google, GitHub and LinkedIn sign-in that accepts only verified email addresses
- Signed, short-lived sessions bound to the browser
- Role-based access control on admin routes
- Prometheus-format metrics behind a bearer token
- Database migrations applied on production deploys
Engineering quality
- Every request body and query checked against a schema on the server
- Rate limits on failed logins and on provider sign-in
- A content security policy and other security headers on every page and API response
- Automated axe accessibility tests to WCAG 2.2 AA, secret scanning and static analysis
Tech stack
- Next.js
- TypeScript
- Tailwind CSS
- PostgreSQL
- Zod
- Vercel
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