HTTP binding & JSON data to items

Setup, Configuration and Use Beginners
3

Hi James

Thanks.

I seems to be having a bit of difficulty,

  • When I put, JSONPATH$.wattHoursToday in the Channel I get an error message in the log of,

2021-02-27 12:08:06.527 [ERROR] [nal.common.AbstractInvocationHandler] - An error occurred while calling method 'ThingHandler.thingUpdated()' on 'org.openhab.binding.http.internal.HttpThingHandler@189d672': The transformation pattern must consist of the type and the pattern separated by a colon

  • When I put the JSONPATH$.wattHoursToday in the Link to Item, I get this in the logs,
    2021-02-27 12:10:54.519 [WARN ] [ofiles.JSonPathTransformationProfile] - Could not transform state 'UNDEF' with function 'JSONPATH$.wattHoursToday' and format '%s'

Screen Shot 2021-02-27 at 12.10.22 pm
Screen Shot 2021-02-27 at 12.10.22 pm1175×926 56.7 KB

I must be misunderstanding something. Could you give me a hint.

Regards,
George