Odtnhj

How can jq extract both the index key and doctype key based on the dynamic attribute?:

 "index1": 
 "mappings": 
 "doctype1": 
 "dynamic": "true"
 ,
 "doctype2": 
 "dynamic": "static"
 
 
 ,
 "index2": 
 "mappings": 
 "doctype3": 
 "dynamic": "static"
 ,
 "doctype4": 
 "dynamic": "true"
 
 
 

to give:

{
 "index1": 
 "doctype2": "dynamic": "static" 
 ,
 
 "index2": 
 "doctype3": "dynamic": "static" 
 

or

 "index1": "['doctype2']",
 "index2": "['doctype3']"

I have tried:

jq '. | keys as $i | ..mappings | keys as $d | $i $d'

but it's not even close

You can try these filters:

For the first output:

jq '[
 tostream|
 select(.[1]=="static" and (.[0]|.[-1] == "dynamic"))|
 (.[0]
 ]|add' file

And the 2nd one:

jq '[
 tostream|
 select(.[1]=="static" and (.[0]|.[-1] == "dynamic"))|
 .[0]):[(.[0]
 ]|add' file

Both filter relies on tostream function (requires at least jq version 1.5) which give the content of the input into array in a form [path,value].

The select function get all paths ending with dynamic and static.

The 3rd part of the filter forge the new object according to the expected output by looking up the array path.

To obtain the output in the first form:

map_values( .mappings
 | with_entries( select( .value.dynamic == "static" )) )

We use map_values as the input is a JSON object, and we want to retain its keys; we use with_entries as that makes it easy to select the keys of interest.

The above filter could easily be tweaked to yield the output in the second form, but that form is a bit weird and perhaps not-to-be-encouraged, so I won't.