Filter JSON Object to one value

README.md

Filter JSON Object to one value. See http://blog.wenzlaff.de/?p=13765 in german.

flow.json

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        "func": "var nachricht=\"Die Temperatur ist \"  + msg.payload[\"CPU Temperature\"] + \" Grad Celsius\";\nvar tstamp=(new Date()).toISOString().replace(/t/gi,' ').trim();\nmsg.payload = nachricht + \" am \" + tstamp;\nmsg.topic=nachricht;\nreturn msg;",
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        "name": "Filter einen Wert aus einer JSON REST Abfrage",
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