Invoking individual WebSocket connections has been supported since
adds new functionality on top of it - message broadcasting - which lets one notify all the clients connected to a particular channel. Here is how to use it.
This is a quick guide on how to turn SSH commands into a REST API service. The use-case may be remote administration of devices or equipment that does not offer a REST interface or making sure that access to SSH commands is restricted to selected external REST-based API clients only.