Streamlined backend with Express.js, Firebase, and Qstash (Headless Cron) for appointment scheduling. Qstash handles cron jobs seamlessly, retrying on failure, and allowing easy monitoring.

Sample Nest JS app to test Server-Sent Events (SSE) to push notifications to UI from API layer without Websockets.

Backend for wix

This application continuously fetch embed link of TV channels that are live in YouTube & keep updating the channel database. For user authentication, I have used JWT authentication. Web scraping needs more CPU, so I created a 3rd party microservice for web scraping with enough CPU. I have used Node.js, Express.js & MongoDB to implement the system.