jq: filter nested array objects - jq

Question

Here my documents:
[
{
"id": "3e67b455-8cdb-4bc0-a5e1-f90253870fc9",
"identifier": [
{
"system": {
"value": "urn:oid:2.16.724.4.9.20.91-INVENTAT"
},
"value": {
"value": "04374"
}
},
{
"system": {
"value": "urn:oid:2.16.724.4.9.20.2-INVENTAT"
},
"value": {
"value": "INFP3"
}
},
{
"system": {
"value": "urn:oid:INVENTAT"
},
"value": {
"value": "CBOU035"
}
}
]
},
{
"id": "0f22e5ff-70bc-457f-bdaf-7afe86d478de",
"identifier": [
{
"system": {
"value": "urn:oid:2.16.724.4.9.20.91-INVENTAT"
},
"value": {
"value": "04376"
}
},
{
"system": {
"value": "urn:oid:2.16.724.4.9.20.2-INVENTAT"
},
"value": {
"value": "INF07"
}
},
{
"system": {
"value": "urn:oid:INVENTAT"
},
"value": {
"value": "S527918"
}
}
]
},
{
"id": "a1ea574c-438b-443c-ad87-d31d09d581f0",
"identifier": [
{
"system": {
"value": "urn:oid:2.16.724.4.9.20.91-INVENTAT"
},
"value": {
"value": "08096"
}
},
{
"system": {
"value": "urn:oid:2.16.724.4.9.20.2-INVENTAT"
},
"value": {
"value": "INF04"
}
},
{
"system": {
"value": "urn:oid:INVENTAT"
},
"value": {
"value": "5635132"
}
}
]
}
]
I need to filter .identifier where system.value="urn:oid:2.16.724.4.9.20.91-INVENTAT" or system.value="urn:oid:2.16.724.4.9.20.2-INVENTAT" and pick .value.value.
Desired output:
[
{
"id": "3e67b455-8cdb-4bc0-a5e1-f90253870fc9",
"oid1": "04374",
"oid2": "INFP3"
},
{
"id": "0f22e5ff-70bc-457f-bdaf-7afe86d478de",
"oid1": "04376",
"oid2": "INF07"
},
{
"id": "a1ea574c-438b-443c-ad87-d31d09d581f0",
"oid1": "08096",
"oid2": "INF04"
}
]
I've tried:
map(
{
id,
oid1: select(.identifier?[]?.system.value == "urn:oid:2.16.724.4.9.20.91-INVENTAT") | .identifier[].value.value,
oid2: select(.identifier?[]?.system.value == "urn:oid:2.16.724.4.9.20.2-INVENTAT") | .identifier[].value.value
}
)
But output is not what I need: you can find it on this jqplay.
Any ideas?

Answer 1

This uses IN to check for your query strings, and with_entries on an array to generate the indeces for the oid keys.
jq '
map({id} + (.identifier | map(select(IN(.system.value;
"urn:oid:2.16.724.4.9.20.91-INVENTAT",
"urn:oid:2.16.724.4.9.20.2-INVENTAT"
)).value.value) | with_entries(.key |= "oid\(. + 1)")))
'
[
{
"id": "3e67b455-8cdb-4bc0-a5e1-f90253870fc9",
"oid1": "04374",
"oid2": "INFP3"
},
{
"id": "0f22e5ff-70bc-457f-bdaf-7afe86d478de",
"oid1": "04376",
"oid2": "INF07"
},
{
"id": "a1ea574c-438b-443c-ad87-d31d09d581f0",
"oid1": "08096",
"oid2": "INF04"
}
]
Demo

Answer 2

Here is a ruby to do that:
ruby -r json -e '
def walk(x, filt)
rtr=[]
rep=["uab", "ub"]
x.each{|e|
rd={"id"=>e["id"]}.merge(
e["identifier"].
filter{|ea| filt.include?(ea["system"]["value"])}.
map.with_index(1){|di, i| ["#{rep[i%2]}", "#{di["value"]["value"]}"]}.to_h)
rtr << rd
}
rtr
end
data=JSON.parse($<.read)
puts walk(data, ["urn:oid:2.16.724.4.9.20.91-INVENTAT", "urn:oid:2.16.724.4.9.20.2-INVENTAT"]).to_json
' file
Prints:
[{"id":"3e67b455-8cdb-4bc0-a5e1-f90253870fc9","ub":"04374","uab":"INFP3"},{"id":"0f22e5ff-70bc-457f-bdaf-7afe86d478de","ub":"04376","uab":"INF07"},{"id":"a1ea574c-438b-443c-ad87-d31d09d581f0","ub":"08096","uab":"INF04"}]