This app showcases real-world Authentication and Authorization techniques with NestJS from access to refresh tokens, and everything in between (JWT authentication, role-based and claims-baes access control, policy-based authorization, API keys, server-side sessions, 2FA authentication, and more).

An API to provide Top10 Categories from a City

Example of a simple web application with a API rate limiter based on the sliding window strategy, using a Redis cache instead of the Nest.js default throttle guard.

Generate & Validate API Key with TypeScript

A secure, server-side HTTP client with built-in API key validation, rate limiting, and security features.

REST API for Oleksii Kuzmenko portfolio website

Link.ly : Transform long, cumbersome web links into short, shareable URLs with ease! Whether you're an individual looking to tidy up your links or a business streamlining your online presence, our URL Shortener app has you covered. You can even reserve custom short links ahead of time and track detailed stats for each one.