RTAS
Implementation
Sequence Diagram
RTAS implementation intends to provide a way to push updates to the user in realtime while keeping your infrastructure safe and easy to scale.
Transaction diagram with RTAS - Fig. 1
Infrastructure
Infrastructure diagram with RTAS - Fig. 2
TF Implementation with RTAS - Fig. 3
Pros and Cons
This strategy has good performance since the application will push the update to the user via SignalR in realtime, and your infrastructure is safe since all ingress communications goes through a Web Application Firewall. Egress communications goes to a single endpoint which allows you to also implement egress firewalls to prevent data exfiltration.