Webhook ↔ Listener for Async web event, to push real-time updates to App/Backend

aka Webhooks

ngrok

Reverse Proxy CLI Dev tool to build/test Backend - to map localhost instance to remote ngrok.io subdomain - to bypass firewall/CORS-pain

Source: ngrok.com/

localtunnel

buggy less stable alternative to ngrok

Source: localtunnel.github.io/www/

References

1. Docker Hub ↔ Docker Image Repo, CI/CD triggers/Webhook, github integration