Using jq to parse json key and value to CSV - json

Question

I am a newbie to jq and is very excited to use it. What ever i am trying to achieve is possible with python but the intention is to learn jq.I am trying to process JSON out of a curl command.
Below is the response of my curl command
{
"results": [{
"name": "smith Jones",
"DOB": "1992-03-26",
"Enrollmentdate": "2013-08-24"
},
{
"name": "Jacob Mathew",
"DOB": "1993-03-26",
"Enrollmentdate": "2014-10-02"
},
{
"name": "Anita Rodrigues",
"DOB": "1994-03-26",
"Enrollmentdate": "2015-02-19"
}
]
}
I was able to get the desired output to some extent. But i am unable to print the key itself in the output. I need this information to use it at a later time as a header of the column when i export this csv file (file.csv) into excel. I am planning to write a bash script to achieve the csv to excel.
<curl-command>|jq '.results | map(.name), map(.DOB), map(.Enrollmentdate) | #csv' >file.csv
I was able to get the output as below
smith jones, jacob Mathew, Anita Rodrigues
1992-03-26, 1993-03-26, 1994-03-26
2013-08-24, 2014-10-02, 2015-02-19
What i am trying to achieve is as below
name:smith jones, name:jacob Mathew, name:Anita Rodrigues
DOB:1992-03-26, DOB:1993-03-26, DOB:1994-03-26
Enrollmentdate:2013-08-24, Enrollmentdate:2014-10-02, Enrollmentdate:2015-02-19

Answer 1

Since you want the key names as well as their values, then adapting your approach, you could use the following, in conjunction with the -r command-line option, to produce CSV:
.results
| map(to_entries[] | select(.key=="name")),
map(to_entries[] | select(.key=="DOB")),
map(to_entries[] | select(.key=="Enrollmentdate"))
| map("\(.key):\(.value)" )
| #csv`
If you want CSV, then stick with the above; if you are confident that quoting the strings
is never necessary, change #csv to join(", "); if you want to remove the quotation
marks only when they are not necessary, you could add a def for a simple filter to do just that.
The repetition of to_entries in the above is a bit of an eye-sore. You might want to think about how to avoid it.