Convert JSON array into CSV using jq

Question

I have JSON file called temp.json.

{
  "users": [
    {
      "username": "jack",
      "email": "jack@somewhere.com",
      "total running apps": "1",
      "api-mock-app": "0",
      "flogo": "1",
      "ipaas": "0",
      "nodejs-app": "0"
    },
    {
      "username": "jill",
      "email": "jill@somewhere.com",
      "total running apps": "1",
      "api-mock-app": "0",
      "flogo": "1",
      "ipaas": "0",
      "nodejs-app": "0"
    }
  ]
}

i want to convert this JSON into CSV lilke this,

username email              total running apps api-mock-app flogo ipaas nodejs-app
jack     jack@somewhere.com 1                  0            1     0     0
jill     jill@somewhere.com 1                  0            1     0     0

I tried this

jq -r '.users[] | keys[0] [.username, .email, ."total running apps", ."api-mock-app", .flogo, .ipaas, ."nodejs-app"] | join(", ") | @csv' temp.json`

But i am getting error

q: error (at temp.json:22): Cannot index string with string "jack"`

Can anyone explain where am i making mistake and please let me know the correct answer.

Possible duplicate of [Convert a JSON into CSV using jq](https://stackoverflow.com/questions/47715234/convert-a-json-into-csv-using-jq) — knb, Dec 10 '17 at 08:59

score 7 · Accepted Answer · answered Dec 09 '17 at 20:46

jq solution:

jq -r '(.users[0] | keys_unsorted), (.users[] | to_entries | map(.value))|@csv' temp.json

The output:

"username","email","total running apps","api-mock-app","flogo","ipaas","nodejs-app"
"jack","jack@somewhere.com","1","0","1","0","0"
"jill","jill@somewhere.com","1","0","1","0","0"

score 2 · Answer 2 · answered Dec 10 '19 at 07:53

2

I think the simplest ways to do it is

jq -r "(.users[0] | keys_unsorted),  (.users[] | map(.) | @csv)"

answered Dec 10 '19 at 07:53

Phil

3,282
1
20
16

Rajiv Rai · Answer 3 · 2017-12-09T18:42:09.647

0

I tried this, and it worked perfectly,

jq -r '(.users[0] | keys), (.users[] | [.username, .email, ."total running apps", ."api-mock-app", .flogo, .ipaas, ."nodejs-app"]) | @csv' temp.json

output format is.

"api-mock-app","email","flogo","ipaas","nodejs-app","total running apps","username"
"jack","jack@somewhere.com","1","0","1","0","0"
"jill","jill@somewhere.com","1","0","1","0","0"

edited Dec 09 '17 at 18:42

answered Dec 09 '17 at 18:33

Rajiv Rai

235
4
16

but the order of header columns is arbitrary in this case ... and columns don't correspond to subordinate values – RomanPerekhrest Dec 09 '17 at 20:43
Yeah, I realised that, keys_unsorted would solve this problem as you have rightly answered, Thank You. – Rajiv Rai Dec 10 '17 at 05:50

Convert JSON array into CSV using jq

3 Answers3

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