Authorization copied into every route will drift. Factor it.
A build_require_role-style factory on top of your user dependency: declare roles on the route, return 403 otherwise. Small surface. Typed. Meant to drop onto services you already run.
~726 words · field guide
If your security model is “we trust the frontend,” please sit down.
Authz entropy
- Role checks pasted per handler.
- 403 logic that disagrees with itself.
- New endpoints that “forgot” security.
The shape of the solution
One factory. Route-level roles. Less folklore.
- Role factory
- FastAPI dependency style
- 403 path
- Typed helpers
What's in the download
- RBAC module
- README
- Verify
- LICENSE
What FastAPI RBAC Middleware is for (and what it isn’t)
FastAPI RBAC Middleware lives in the FastAPI · RBAC lane. It’s a downloadable workshop folder — code you unzip, run in mock mode, and adapt — not a hosted product with seats, SLAs, or a customer success manager named Chad.
In plain terms: One factory. Route-level roles. Less folklore.
If you came here for a soft-focus brand story about ‘empowering data journeys,’ you’re in the wrong harbor. This is notes from people who got tired of rebuilding the same bridge on every engagement.
The Tuesday-afternoon version of the problem
These kits start on a Tuesday afternoon. Someone asks for a ‘thin wrapper’ or a ‘quick sync.’ Three weeks later you’re debugging pagination while Slack blinks like a smoke alarm.
For this one, the pain usually shows up as: (1) Role checks pasted per handler. (2) 403 logic that disagrees with itself. (3) New endpoints that “forgot” security.
If your security model is “we trust the frontend,” please sit down.
Authn ≠ authz
Logging in is not permission. Roles are permission. Keep them boring and centralized.
Small surface ships
A role factory beats pasting `if role == admin` into every handler until the checks disagree with each other.
How to evaluate it without vibes
Open the README. Copy .env.example. Run the verify script or mock path. You want a boring green signal that the contract works. Flashy demos that only run on the author’s laptop are how ‘kits’ earned a bad name.
Then read the modules like a colleague’s PR. If the structure looks reusable, keep going. If it feels like generated goo, close the tab — life’s short.
You’ll see pieces aimed at: Role factory; FastAPI dependency style; 403 path; Typed helpers.
A realistic first week (no hero montage)
Day 0: unzip, skim the license, run verify/mock. Day 1: point env vars at non-prod credentials if you have them. Day 2: hang it behind ADF, your app, or cron — depending on what this kit is — and watch one happy path.
Day 3 is when you stop treating it like a demo: logging, retries, secrets in a real secret store, and the inevitable ‘can we also support X?’ You own the code. Extend it. That’s the whole point of a workshop asset versus renting another logo.
If your process requires a design doc before a Dockerfile, paste the architecture from this page into the doc and skip inventing folklore from Slack threads.
Where the jokes stop
Humor is here so the page isn’t a funeral. It is not a substitute for signature checks, pagination, role gates, or private networks. If you smirked and skipped verify, that’s on both of us.
Checklist: secrets out of git, mock before prod, verify in CI if you can. The ZIP is the workshop. This page is the field notes.
Dark Lighthouse is a consulting alias with a product habit — reusable bridges because rewriting them from scratch was getting old.
Where it fits
FastAPI RBAC Middleware is aimed at data, platform, or SaaS engineers who recognize the pain bullets above and want a deployable starting point instead of a six-week inventing contest.
It won’t replace a fully managed sync, a white-glove marketplace app, or a promise that vendors never change APIs. Sharp tools, not frozen oceans.
Wrap-up
That’s the field notes for FastAPI RBAC Middleware. Next step is the ZIP and the verify script — not another meeting. Questions: admin@darklighthousesolutions.com.
More bridges in the same style live on the kit guides index.
FAQ
OAuth provider?
Bring your own user dependency — we gate roles.
Multi-tenant?
Pair with the Orgs kit.
Download on Polar if you want the ZIP · All guides