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How to transform a json array to a string list in NIFI

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Hello,

i have a queryCassandra which generate a json like this one:

{"results":[{"term":"term1"},{"term":"term2"}..]} 

Now, i want to get from this all the terms values separated by some separator in string format;

ex : term1,term2,term3

So i can pass this list as a string parameter for a java main program which i've alreat set.

(i only need the transofrmation, not the java program execution) Thank you !

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