Perhaps this might help? https://discourse.nodered.org/t/get-description-of-nodes-in-a-flow-programatically/2635
Node-RED Forum
Hi, I need to get the description of the nodes in a flow programmatically for further processing tasks. I can get this description content manually by selecting the required node set and then using Export ->Clipbord in menu buttons. I am designing a custom node which programmatically reads the description of all nodes in current flow and then s...