I think this is about the same issue you replied to some years ago, Robert: wanting to get certain values from returned JSON data from weerlive.nl
Your post below in English:
$represents the (JSON) object returned by the serverliveweeris the name of a “key” in that object; the value associated with the key is an array of values (each value is another object, so$.liveweeris an array-of-objects)[0]is the first element of that array; if you want the second element, you have to use[1](etc);d0tmaxis the name of a key in the (in this case) first element of theliveweerarray
The expression is a JSONPath expression. You can here try such expressions in real time: paste the JSON result from the weerlive server into the “JSON” field, enter the JSONPath expression at the top, and on the right you can see the result.
Original Dutch post: