Hello Community.
I am using the HTTP Binding on openHAB 3.3.0 on a raspberry pi to read data from a heater.
I am reading the water temperature from this set of data:
I do this with this things settings:
Now I would like to read the data “PROTECTION_TEMP” from Block “LEGIONELLA_PROTECTION_SETTINGS” in this set of data:
fullstatus.txt (11.8 KB)
I cannto figure out how to get this value. Can anybody help me to get this value out of this dataset?
Are you trying to read askoma? 
I ask cause once I created binding which I could not finish. I keep code up to date with recent OH releases but never published it for further testing by community.
I am reading and writing askoma heater, yes. Now I want to read some more values.
getval.json works fine, but does not hold the value I am looking for.
You need to change state extension to full status and adjust json path. For testing path expression you can try https://jsonpath.com/, which will show you more or less what expression will return with provided data.
In principle reading nested objects requires giving them in path, for example $.parent.child will first look for parent and then child within this parent element. For fullstatus you just need to glue paths - $.LEGIONELLA_PROTECTION_SETTINGS.specific_field_within_block.
Thank you very much. That works perfectly.
