I'm just starting with node red and I'm very impressed of this absolutly cool software.
I tested some simple things, like ping a host and display it on a dashboard.
Now I'm searching for a way to get information about the nodered system (e.g. state of node).
Lets say, I have a ping-node with a led to display it on the dashboard. How can I get this information from an external programm? Is there something like a rest interface to call or do I have to store this information somewhere else?