I'm trying to flatten a json file to .csv. I'd like to use jqplay for this in stead of programming it in python for example.
The example below is een array that als contains arrays.
My desired output is one line entry on the 2nd array:
so
OPEN, NR1, ....
CLOSED, NR2, ...
....
Can anyone help me with a good jq command for this?
[
{
"description": "Berendrechtsluis",
"lock_id": "BES",
"longitude_wgs84": 4.28561,
"latitude_wgs84": 51.34414,
"lock_doors": [
{
"state": "OPEN",
"lock_door_id": "NR1",
"operational_state": "NO_DATA",
"state_since_in_utc": "2021-12-29T16:32:23Z",
"longitude_wgs84": 4.28214,
"latitude_wgs84": 51.34426
},
{
"state": "CLOSED",
"lock_door_id": "NR2",
"operational_state": "WORKING",
"state_since_in_utc": "2022-01-12T12:32:52Z",
"operational_state_since_in_utc": "2021-12-22T13:13:57Z",
"longitude_wgs84": 4.28247,
"latitude_wgs84": 51.34424
},
....
Are you looking for something like this?
jq -r '.[].lock_doors[] | [.[]] | #csv'
"OPEN","NR1","NO_DATA","2021-12-29T16:32:23Z",4.28214,51.34426
"CLOSED","NR2","WORKING","2022-01-12T12:32:52Z","2021-12-22T13:13:57Z",4.28247,51.34424
Demo
To add column headers, simply prepend them in an array:
jq -r '["a","b","c"], .[].lock_doors[] | [.[]] | #csv'
"a","b","c"
"OPEN","NR1","NO_DATA","2021-12-29T16:32:23Z",4.28214,51.34426
"CLOSED","NR2","WORKING","2022-01-12T12:32:52Z","2021-12-22T13:13:57Z",4.28247,51.34424
Demo
Related
I want to go from
[
{"key_skjdghkbs": "deep house"},
{"key_kjsskjbgs": "deadmau5"},
{"key_jhw98w4hl": "progressive house"},
{"key_sjkh348vg": "swedish house mafia"},
{"key_js3485jwh": "dubstep"},
{"key_jsg587jhs": "escape"}
]
to
{
"key_skjdghkbs": "deep house",
"key_kjsskjbgs": "deadmau5"
"key_jhw98w4hl": "progressive house",
"key_sjkh348vg": "swedish house mafia",
"key_js3485jwh": "dubstep",
"key_jsg587jhs": "escape"
}
Each object in the original list has exactly one key but the keys are unique.
I could do something like jq .[] .genre if the keys were the same but they're not.
jq's add function does exactly this
jq 'add'
Try this (assuming your file is named so72297039.json):
jq '[.[] | to_entries] | flatten | from_entries' < so72297039.json
(Edit: OP edited question, so here's relevant answer)
Since duplicate keys are not possible (see other answer) you can use to format like this:
{
"artist": [
"deadmau5",
"swedish house mafia"
],
"genre": [
"deep house",
"progressive house",
"dubstep"
],
"song": [
"escape"
]
}
with a jq call like this:
jq '
map(to_entries)
| flatten
| group_by(.key)
| map({key: first.key, value: map(.value)})
| from_entries
' input.json
If the keys artist, genre, song are known in advance an easier to understand expression can be used.
I'm trying to get this output the device name "test"
My filter is .[] | [.deviceName] and it's returning error: (at :7): Cannot index array with string "deviceName"
{
"test": [
{
"deviceName": "test",
"monitoringServer": "server1"
}
]
}
Presumably you meant:
jq '.test[] | [.deviceName]'
or perhaps:
jq '.[][] | [.deviceName]'
but without knowing your requirements, it's hard to say. That's one of the reasons why the http://stackoverflow.com/help/mcve guidelines were formulated.
I have limited experience with jq and am having an issue doing a a select contains for a string in a boolean. This is my json and am looking to get back just tdonn.
[
"user",
"admin"
]
[
[
"tdonn",
true
]
]
Here is what im trying. I have tried many different ways too.
jq -e -r '.results[] | .series[] | select(.values[] | contains("tdon"))[]'
With the sample JSON shown in a comment, the following filter would produce the result shown:
.results[] | .series[][] | flatten[] | select(contains("tdon")?)
Output with -r option
tdonn
You might like to consider:
jq '.. | strings | select(contains("tdon"))'
I need help in correcting jq test cases syntax. Following is output file & trying to test ID list with command below. Gives error index to string type.
[[ $(echo $output| jq -r '.output.value[] | select(.identity).id_list') == *"id2"* ]]
output = {
"resource_output": {
"value": {
"identity": [
{
"id_list": [
"/subscriptions/---/id1",
"/subscriptions/---/id2",
"/subscriptions/--/id3"
],
"principal_id": "",
"tenant_id": "",
"type": "managed"
}
]
}
}
Your query does not match the sample JSON, and you have not indicated what output you are expecting, but the following variation of your query illustrates how to use select and test with your data along the lines suggested by your attempt:
echo "$output" |
jq -r '.resource_output.identity[].id_list[] | select(test("id2"))'
Output:
/subscriptions/---/id2
Suppose I have the following json in a file json.txt
{
"first_name": "John",
"last_name": "Smith",
"things_carried": [
"apples",
"hat",
"harmonica"
],
"children": [
{
"first_name": "Bobby Sue",
"last_name": "Smith"
},
{
"first_name": "John Jr",
"last_name": "Smith"
}
]
}
In shell script I had written the logic to find the size of children array using jq tool .
size=cat json.txt | jq '.children | length'
i=0
while [ $i -le $size ]
do
array[$i]=$(cat json.txt | jq '.children[$i]')
i=`expr $i + 1`
done
On running this it gives the following error -
.children[$i] 1 compile error
It seems that it is not able to replace the variable i in the children[] array , as because if we give the expression -
array[$i]=$(cat json.txt | jq '.children[0]')
it runs well .
Can someone help me .
You're using single quotes around the jq program. Shells do not interpolate variables inside single quotes; this is intentional and the jq manual recommends using single quotes around programs for this reason.
An argument syntax is provided by jq for this purpose. This syntax allows you to set jq variables to the value of shell variables. You could replace your current jq invocation with this:
array[$i]=$(cat json.txt | jq --arg i $i '.children[$i | tonumber]')
It looks like you're just trying to set the children to a bash array variable.
You don't need to loop, just set the array directly.
$ IFS=$'\n'; array=($(jq -c '.children[]' json.txt))
You should use the following syntax:
array[$i]=$(cat json.txt | jq '.children['${i}']')