flattening json to csv with jqplay

Question

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
            },
            ....

Answer 1

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 on jqplay.org