AWS shows WebSocket patterns with Amazon VPC Lattice

AWS's VPC Lattice WebSocket guide is useful because it is explicit about tradeoffs. TLS listeners can work for passthrough WebSocket traffic, but connection duration, idle timeout, throughput, and load-balancing behavior differ from resource configurations.

For real-time applications, those differences are not details. A chat app, live dashboard, or collaboration tool may care more about connection lifetime and predictable routing than about conventional request handling, so the networking pattern needs to be chosen around the session model.

Source: Building real-time applications with WebSocket using Amazon VPC Lattice