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Slice Selector for reversing the Output #176
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Activity
For the last one, you can do $[(@.length-1)].
Hi @fabo-afpa,
i solved my issue by reversing my json later in the code.however i just tried* your solution but doesn't seem to work. can you please share a full example with input json, query and expected output, please?
*i have tried using this online query tester: https://www.jsonquerytool.com/
With the query tester you suggest, keep the JSON:
{ "key": "value", "array": [ { "key": 1 }, { "key": 2, "dictionary": { "a": "Apple", "b": "Butterfly", "c": "Cat", "d": "Dog" } }, { "key": 3 } ] }Use
$.array[(@.length-1)].keyas Query, the Output should be:
[ 3 ]I tried with all the Transform libs on the left.
Hi @fabo-afpa, thanks for the example.
the output of your example is actually the last item of the json.
I was looking for a solution to get the output reversed using the querytool. For example:{ "d": "Dog", "c": "Cat", "b": "Butterfly", "a": "Apple" }From what i learned in the meantime i think this is not possible with the querytools. So i solved this in my following code.
Many JsonPath methods like dchester and goessner feature reversing the output with the slice selector. For example:
Source: https://danielaparker.github.io/JsonCons.Net/articles/JsonPath/JsonConsJsonPath.html
The slicing works great with JSONPath-Plus however reversing (with -1 at the end) seems to be unavailable.
Is it possible to add this feature. Or is there any othe workaroud. Maybe a different expression that is not documented?