JQ does not contain for "key": "value" JSON structure - jq

The question is similar to THIS, but the JSON structure is different.
In my usecase JSON has an arrays with key:value data:
{
"data":[
{
"name":"banana",
"tags":[
{
"id":"yellow"
},
{
"id":"long"
}
]
},
{
"name":"apple",
"tags":[
{
"id":"red"
},
{
"id":"round"
}
]
},
{
"name":"orange",
"tags":[
{
"id":"orange"
},
{
"id":"round"
},
{
"id":"colored"
}
]
}
]
}
What required is to filter the only elements that do not have certain keyword - "red" for instance.
When i use jq '.data[] | select(.tags[].id | index( "red" ))' it brings me the correct resut of 'apple' (as it has "id": "red") and 'orange' (as it has "id": "colored").
However, when i add the negation jq '.data[] | select(.tags[].id | index( "red" ) | not)' the results are more than strange, with elements' duplication, totally enigmatic.
How can i use jq to filter the result the way it returns only elements that do not have the exact match among the array values?

You can use all to give a condition all items must meet. Here, all values in .tags[].id must be unequal != to "red":
jq '.data[] | select(all(.tags[].id; . != "red"))'
{
"name": "banana",
"tags": [
{
"id": "yellow"
},
{
"id": "long"
}
]
}
{
"name": "orange",
"tags": [
{
"id": "orange"
},
{
"id": "round"
},
{
"id": "colored"
}
]
}
Demo
Add .name and use the -r option to only get the names:
jq -r '.data[] | select(all(.tags[].id; . != "red")).name'
banana
orange
Demo

index works on an array, your current filter does not pass index to an array, therefore you're getting other results then expected.
.data[] | select([ .tags[].id ] | index("red") | not)
Here we create an array with all the id's [ .tags[].id ] and use that array to check for red: | index("red") | not
The above filter gives the following output:
{
"name": "banana",
"tags": [
{
"id": "yellow"
},
{
"id": "long"
}
]
}
{
"name": "orange",
"tags": [
{
"id": "orange"
},
{
"id": "round"
},
{
"id": "colored"
}
]
}
Demo
If you want to exclude 'colored', use contains():
.data[] | select([ .tags[].id ] | contains(["red"]) | not)
{
"name": "banana",
"tags": [
{
"id": "yellow"
},
{
"id": "long"
}
]
}
Demo

Related

Conditional append a element to an array

Here is the jq I have, it just wants to build a new element and then append it to an array,
[.[] | . as { foo: $foo1, bar: $bar1} |
{
names: ([
$foo1 | range(0;length) as $i |
{ key: ($foo1[$i]) }
] + [{ key: $bar1 }])
} |
{
values: .names,
}
]
And suppose I have a json like this,
{
"foo":[
"key1",
"key2"
],
"bar": "key3"
}
This will generate a json file like this,
[
{
"values": [
{
"key": "key1"
},
{
"key": "key2"
},
{
"key": "key3"
}
]
}
]
But the element should be only appended when the $bar is not an empty string, can I do something like this?
[.[] | . as { foo1: $foo1, bar1: $bar1 if $bar != ""}
...
or do it when is appended,
names: ([
$foo1 | range(0;length) as $i |
{ key: ($foo1[$i]) }
] + [{ key: $bar1 }] | if $bar != "")
thanks in advance for any help!
You could just use select to filter out that case
jq '[{values: (.foo + [.bar | select(. != "")]) | map({key:.})}]'
If .bar == "key3", it prints
[
{
"values": [
{
"key": "key1"
},
{
"key": "key2"
},
{
"key": "key3"
}
]
}
]
If .bar == "", it prints
[
{
"values": [
{
"key": "key1"
},
{
"key": "key2"
}
]
}
]
If .bar does not exist, it will print
[
{
"values": [
{
"key": "key1"
},
{
"key": "key2"
},
{
"key": null
}
]
}
]
If in this last case you want to have the same result as with .bar == "", then change . != "" to values != "" in the filter to consider only values that are not null (or to strings != "" to only consider (non-empty) strings and disregard any other type).

Parsing on jq with_entries

I have the following data
Command output:
| jq '.rrsets[]'
{
"comments": [],
"name": "name1.",
"records": [
{
"content": "10.10.10.10",
"disabled": false
}
],
"ttl": 60,
"type": "A"
}
{
"comments": [],
"name": "name2.",
"records": [
{
"content": "20.20.20.20",
"disabled": false
}
],
"ttl": 60,
"type": "CNAME"
}
I want to get names where type is A.
Help, tell me how to do this?
| jq '.rrsets[] | with_entries(select(.key== "name", .value == "A"))'
{
"name": "name1."
}
{
"name": "name2.",
"type": "A"
}
Displays all the lines, but I only need where type = A
I'm not sure if this is what you are looking for, but wouldn't simply ... | select(.type == "A") do the trick?
... | jq '.rrsets[] | select(.type == "A")'
{
"comments": [],
"name": "name1.",
"records": [
{
"content": "10.10.10.10",
"disabled": false
}
],
"ttl": 60,
"type": "A"
}
Demo
And then just get the .name if you want only that (using -r to get rid of the JSON formatting):
... | jq -r '.rrsets[] | select(.type == "A").name'
name1.
Demo

JQ: How do I extract item which has part of subitem value of "FOO" [duplicate]

I have a JSON file that looks like this:
{
"InstanceId": "i-9KwoRGF6jbhYdZi823aE4qN",
"Tags": [
{
"Key": "blah",
"Value": "server-blah"
},
{
"Key": "environment",
"Value": "ops"
},
{
"Key": "server_role",
"Value": "appserver"
},
{
"Key": "Name",
"Value": "some_name"
},
{
"Key": "product",
"Value": "some_server"
}
]
}
{
...more objects like the above...
}
I need to display the InstanceId where "Key" == "environment" and "Value" == "ops".
I have jq-1.6.
If I say:
cat source.json | jq '
{ InstanceId, Tags } |
(.Tags[] | select( .Key == "environment" ))
'
I get some of what I want, but I cannot figure out how to include InstanceId in the output nor how to incorporate the "and" part of the select.
Here is a simple but efficient approach using any:
select( any(.Tags[]; .Key=="environment" and .Value == "ops") )
| .InstanceId
An alternative approach that avoids .Tags[]:
{"Key": "environment", "Value": "ops"} as $object
| select( .Tags | index($object) )
| .InstanceId
I'm not sure if this is the exact output you're looking for (comment if it isn't), but this will output the InstanceIds of JSON objects that contain a Tag with Key environment and Value ops.
jq 'select( .Tags[] | (.Key == "environment" and .Value == "ops")) | .InstanceId' < source.json

Filtering objects in jq by existence of nested array values

Given a document like this:
[
{
"KVs" : [
{
"Key": "animal",
"Value": "lion"
},
{
"Key": "mascot",
"Value": "lion"
}
],
"name": "roger"
},
{
"KVs" : [
{
"Key": "animal",
"Value": "zebra"
},
{
"Key": "mascot",
"Value": "lion"
}
],
"name": "linda"
}
]
I want to use jq to select only those elements of the top array that contain the KV pair animal == "lion".
The output for the above JSON document should be:
{
"KVs" : [
{
"Key": "animal",
"Value": "lion"
},
{
"Key": "mascot",
"Value": "lion"
}
],
"name": "roger"
}
Can't figure out how to accomplish this with select(). I know how to use it to select based on one specific field. e.g. by key name: .[] | select(.KVs[].Key == "animal"), right? But how do I tell it to match the same KV object on two fields (Key & Value)?
NM, solved it with the help of jqplay and some trial and error.
This is the solution:
.[] | select(.KVs[] | .Key == "animal" and .Value == "lion")
(jqplay permalink)

Create an object with specified indexes

I am trying to use for loop for every object using jq.
Sample Input generated by Elasticsearch
{
"took": 202,
"timed_out": false,
"aggregations": {
"aggsDateHistogram": {
"buckets": [
{
"key": 1465974236000,
"search": {
"value": 14
}
},
{
"key": 1465975137000,
"search": {
"value": 16
}
}
]
}
}
}
I want to have an object that has a key value and corresponding value of value index from search.
{ "date": .aggregations.aggsDateHistogram.buckets[].key, "value": .aggregations.aggsDateHistogram.buckets[].search.value }
This gives me an object but with cartesian product, but I only want to have values like
key[1] : search[1].value
key[2] : search[2].value
So you want to produce this output?
[
{
"key": 1465974236000,
"value": 14
},
{
"key": 1465975137000,
"value": 16
}
]
The following will do just that:
.aggregations[].buckets
| map({key: .key, value: .search.value})
And from a terminal:
jq '.aggregations[].buckets
| map({key: .key, value: .search.value})' input.json
Here is a slightly simpler solution
[ .aggregations[].buckets[] | {key, value:.search.value} ]

Resources