How does one pass multiple variables between function nodes

[wcx]

Morning Team,

In addition to the standard message being passed between nodes I would like to pass a few additional parameters to a following function node.

I would like if possible to retain the original message if possible.

[jbudd]

A message is by no means restricted to payload and topic.
You can attach additional data in a change node or a function node:

msg.coreTemperature = 475
msg.output = {"volts": 400000, "amps": 800}