This is node js foundation each and every folder (section) we got a new concept like route like css ,public file . npm init -y this type utlity and many more on this repo make a short learning airbnb backend

Complet with all db sql and no sql both are runing set up and run

Features

🔐 Authentication System (Login & Register)

✅ Session-based / JWT Authentication

🗄️ MySQL Integration – Stores structured data

📦 MongoDB + Mongoose – Handles flexible & scalable data

⭐ Add to Favourites / Remove from Favourites

👤 User-based favourite list management

📡 REST API endpoints for easy frontend integration