I have this json object like this :
[ {
"name": "ACCOUNT-V1",
"version": "1.3.0"
},
{
"name": "IDENTIFIER-V1",
"version": "1.1.0"
},
{
"name": "LOCATION-V1",
"version": "1.6.0"
}
]
I'd like to parse and print like this
ACCOUNT-V1 1.3.0
IDENTIFIER-V1 1.1.0
LOCATION-V1 1.6.0
tried with
cat json_content.json | jq ' .[] | .name .version'
just getting empty array [] in output
jq --raw-output '.[] | "\(.name) \(.version)"'
Where
.[] Loops over the array
"\(.name) \(.version)" creates a string with name and version key
Using string interpolation
--raw-putput ensures no quotes on the output
Try it online!
In JSON :
[ .. ] is for array
{ .. } is object
So if you put your json to a variable like
const jsx = [ {
"name": "ACCOUNT-V1",
"version": "1.3.0"
},
{
"name": "IDENTIFIER-V1",
"version": "1.1.0"
},
{
"name": "LOCATION-V1",
"version": "1.6.0"
}
];
It will be :
jsx[0].name = "ACCOUNT-V1"
jsx[2].version = "1.6.0"
and so on
Related
have a JSON data like below
"metric": {
"name" : "name1"
},
"values": [
[
16590879,
"0.043984349"
],
"values": [
[
16590876,
"0.043983444"
]
]
}
}
writing below jq , but not giving proper result
jq -r '[.metric.name,(.values[] | map(.) | #csv)'
Actual result
[
"name1",
"16590879",\"0.043984349\"",
"16590876",\"0.043983444\"",
"16590874",\"0.043934345\""
Expected result
name1,16590879,0.043984349
name1,16590876,0.043983444
name2,16590874,0.043934345
The sample data provided is invalid as JSON, but assuming it has been adjusted as shown below, we would have:
< sample.json jq -r '[.metric.name] + .values[] | #csv'
"name1",16590879,"0.043984349"
"name1",16590876,"0.043983444"
If you don't want the quotation marks, then use join(",") instead of #csv.
sample.json
{
"metric": {
"name": "name1"
},
"values": [
[
16590879,
"0.043984349"
],
[
16590876,
"0.043983444"
]
]
}
I am trying to get key#value pairs of JSON file below using jq
{
"STUFF_RELATED1": "STUFF_RELATED1",
"STUFF_RELATED2": "STUFF_RELATED2",
"THINGS": {
"THING_2": {
"details": {
"stuff_branch": "user/dev"
},
"repository": "path/to/repo",
"branch": "master",
"revision": "dsfkes4s34jlis4jsj4lis4sli3"
},
"THING_1": {
"details": {
"stuff_branch": "master"
},
"repository": "path/to/repo",
"branch": "master",
"revision": "dsfkes4s34jlis4jsj4lis4sli3"
}
},
"STUFF": {
"revision": "4u324i324iy32g",
"branch": "master"
}
}
The key#value pair should look like this:
THING_1#dsfkes4s34jlis4jsj4lis4sli3
Currently I have tried this on my own:
jq -r ' .THINGS | keys[] as $k | "($k)#(.[$k].revision)" ' things.json
But it does not give the resul that I really want.:( Thanks in advance!
You need to escape ( :
jq -r ' .THINGS | keys[] as $k | "\($k)#\(.[$k].revision)" ' things.json
Is there a way to create a new element in an existing json object using jq? Example below:
Let's say I have this json object and would like to add a new element to foo:
json='{
"id": "<id>>",
"name": "<name>",
"properties": {
"State": "<state>",
"requests": [],
"foo": [
{
"id": "<id1>",
"bar1": [
{
"baz1": "*"
}
]
},
{
"id": "<id2>",
"bar2": [
{
"baz2": "*"
}
]
}
]
}
}'
This command works to do that:
json2=$($json1 | jq '.properties.foo += [ { "id": "<id3>", "bar3": [ { "baz3": "*"} ] } ]')
However, running that same command without a preexisting foo element fails (example array below):
json3='{
"id": "<id>>",
"name": "<name>",
"properties": {
"State": "<state>",
"requests": []
}
}'
Is there a way in jq to create that element in the json object if one already does not exist?
Thanks!
There is nothing wrong with your jq program, which can be seen by running:
jq '.properties.foo += [ { "id": "<id3>", "bar3": [ { "baz3": "*"} ] } ]' <<< "$json3"
It looks like the problem is with your invocation but since it's not clear what $json1 is, I'll just guess that the above is sufficient for you to resolve the issue.
I'd like to know a quick way to insert a json to json.
$ cat source.json
{
"AWSEBDockerrunVersion": 2,
"containerDefinitions": [
{
"environment": [
{
"name": "SERVICE_MANIFEST",
"value": ""
},
{
"name": "SERVICE_PORT",
"value": "4321"
}
]
}
]
}
The SERVICE_MANIFEST is content of another json file
$ cat service_manifest.json
{
"connections": {
"port": "1234"
},
"name": "foo"
}
I try to make it with jq command
cat service_manifest.json |jq --arg SERVICE_MANIFEST - < source.json
But seems it doesn't work
Any ideas? The final result still should be a valid json file
{
"AWSEBDockerrunVersion": 2,
"containerDefinitions": [
{
"environment": [
{
"name": "SERVICE_MANIFEST",
"value": {
"connections": {
"port": "1234"
},
"name": "foo"
}
},
...
]
}
],
...
}
Updates.
Thanks, here is the command I run from your sample.
$ jq --slurpfile sm service_manifest.json '.containerDefinitions[].environment[] |= (select(.name=="SERVICE_MANIFEST").value=$sm)' source.json
But the result is an array, not list.
{
"AWSEBDockerrunVersion": 2,
"containerDefinitions": [
{
"environment": [
{
"name": "SERVICE_MANIFEST",
"value": [
{
"connections": {
"port": "1234"
},
"name": "foo"
}
]
},
{
"name": "SERVICE_PORT",
"value": "4321"
}
]
}
]
}
You can try this jq command:
jq --slurpfile sm SERVICE_MANIFEST '.containerDefinitions[].environment[] |= (select(.name=="SERVICE_MANIFEST").value=$sm[])' file
--slurpfile assigns the content of the file to the variable sm
The filter replaces the array .containerDefinitions[].environment[] with the content of the file only on the element having SERVICE_MANIFEST as name.
A simple solution would use --argfile and avoid select:
< source.json jq --argfile sm service_manifest.json '
.containerDefinitions[0].environment[0].value = $sm '
Or if you want only to update the object(s) with .name == "SERVICE_MANIFEST" you could use the filter:
.containerDefinitions[].environment
|= map(if .name == "SERVICE_MANIFEST"
then .value = $sm
else . end)
Variations
There is no need for any "--arg"-style parameter at all, as illustrated by the following:
jq -s '.[1] as $sm
| .[0] | .containerDefinitions[0].environment[0].value = $sm
' source.json service_manifest.json
Hi I have the below JSON file with nested object:
{
"Maps": {
"Campus": [
{
"name": "nus",
"Building": [
{
"name": "sde1",
"Floor": [
{
"name": "floor1"
},
{
"name": "floor2"
}
]
},
{
"name": "sde2"
}
]
},
{
"name": "ntu",
"Building": [
{
"name": "ece1",
"Floor": [
{
"name": "floor1"
},
{
"name": "floor2"
}
]
},
{
"name": "ece2"
}
]
}
]
}
}
I want to use jq to parse the above JSON file and get the below format:
nus>sde1>floor1
nus>sde1>floor2
ntu>ece1>floor1
ntu>ece1>floor2
basically I have to concatenate the Campus Name with Building Name and Floor name and put a < symbol in between.
If the nested object field Floor is not exist, ignore the parse and continue the next child object.
How to achieve that? thanks.
You can use the following jq command:
jq '.Maps.Campus[]|"\(.name)>\(.Building[]|"\(.name)>\(.Floor[]?.name)")"' file.json
jq is smart enough to print the combinations of .name and .Building[].name since .Building is an array. The same action get's applied to .Building[].name and Floor[]?.name. ? because floor is not always set.
Here is a solution which uses jq variables
.Maps.Campus[]
| .name as $campus
| .Building[]
| .name as $bldg
| .Floor[]?
| .name as $floor
| "\($campus)>\($bldg)>\($floor)"