hi, I'm trying to save and read chart data into a context var. I'v edited the setting.js file to save the context variables into a file. In this example flow I inject random numbers to a chart and save them to a Global variable. my goal is to load all the data before the power outage and continu…

Ki-va 30 June 2020 11:06 16

found a solution:
I've added a switch node after the Chart node and my function node:
that states if msg.payload is undefined don't save it.

thank you very much for your help.

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Restore Chart data after power outage

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