Ok, we have this data from influx. Temperature over the last 30 minutes [{"time":"2020-05-18T19:09:53.000Z","Temperatur":24.1},{"time":"2020-05-18T19:09:58.000Z","Temperatur":24},{"time":"2020-05-18T19:12:48.000Z","Temperatur":23.9},{"time":"2020-05-18T19:13:27.000Z","Temperatur":24},{"time":"2020-…

I got the following hint from the jsonata guru's. $.payload^(Temperatur)[[0, -1]] It orders them by temperature and gets the first and last element, nice.

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JSONata: Get max and minimum temperature with timestamp

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