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Case Study

RBAC Auth System

Multi-role JWT authentication with granular permissions. Built as a reusable standalone module adaptable across diverse web applications.

JWTExpress.jsMongoDBNode.js
Source Access 🔒
Overview
RBAC Operations
00:0008:0016:0024:00
Uptime / Health
99.9%
Uptime
Role3+
Auth8
Integration< 5 mins
3+Role
< 5 minsIntegration
8Auth
HMAC256JWT
🛡️
3+Role Types Configured
🛡️
HMAC256JWT Token Security
🕒
< 5 minsIntegration Setup Time
🛡️
8Auth Router Endpoints
❌

The Challenge

  • ❌Rewriting access controls for every dashboard is slow and error-prone.
  • ❌Cross-site scripting (XSS) risks from local storage token caching.
  • ❌Unmanaged permission inheritance causing security gaps.
✔️

The Solution

  • ✔️Developed standalone reusable RBAC middleware module in Express.
  • ✔️Mapped granular permission scopes to API endpoints directly.
  • ✔️Stored authentication tokens in secure HTTP-only cookies.
  • ✔️Authored clean access and refresh token rotation sequences.

Key Features

// Feature 01

Granular action scopes

controls

// Feature 02

HTTP-Only secure cookie

token loops

// Feature 03

Bcrypt password hash

salting

// Feature 04

Reusable Express.js middleware

decorator

// Feature 05

Access & Refresh

token verification paths

// Feature 06

Cross-Site Scripting (XSS)

protections

Project Gallery

RBAC Auth System DashboardLIVE
Primary StatOperations: Active
Speed IndicatorUptime: 99.9%
Operations Monitor Dashboard
Mongoose Collections / Node Cache
KEY / IDTYPESTATUS
sys_core_registryMongoose RecordOnline
auth_jwt_middlewareJWT Guard RouterSecured
data_store_cacheIndex CollectionActive
Database Collections & Cache Records
rbac-auth-system.config
1// core/bootstrap.ts
2import { Server } from 'http'
3import express from 'express'
4
5const app = express()
6const port = process.env.PORT || 3000
7
8app.get('/health', (req, res) => {
9  res.json({ status: 'healthy', uptime: process.uptime() })
10})
11
12app.listen(port, () => {
13  console.log(`Server started on port ${port}`)
14})
Source Rules Configuration Code

Project Impact

+ L00.METRIC
+ R00.STAT
+ B50.SYS
+ DATA.SEC
3+Role Types Configured
HMAC256JWT Token Security
< 5 minsIntegration Setup Time
8Auth Router Endpoints

What I Learned

01

Modular Security

Modularizing security logic facilitates fast bootstrapping of new client applications.

02

XSS Prevention

Storing tokens in secure HTTP-only cookies reduces vulnerabilities from Cross-Site Scripting (XSS).

03

Secure Cryptography

Using strict HMAC256 token verification prevents token forgery.

+ CTA.01
+ END.SECTION
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Clients
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