Transformations of MQTT messages

[kvoit]

Thanks, but this does only half of what I wanted. There is a dedicated item type for theses switches, Contact.
For that, I have to translate true/false to on/off. How do I combine that with JSONPATH?

Combine transformations in item definition

Thanks again. You actually don’t need the slice. My working example is: owntime.js (function(json){ var otdata = JSON.parse(json); var tzoffset = new Date().getTimezoneOffset() * 60000; return new Date(otdata.tst * 1000 - tzoffset).toISOString(); })(input)

discusses combining transformations, but the solution would only have an advantage to writing a rule if I could manage to not hardcode the JSON fieldname …