How to parse JSON array key name dynamically using shell script jq-CodePudding

I've below JSON, I want to parse all these key names product, inventory, rating, review dynamically and put it in the list and iterate the key name one by one.

{
    "product": [
        {
            "productID": "123",
            "productName": "test1"
        }
    ],
    "inventory": [
        {
            "id": "12093",
            "name": "adie"
        }
    ],
    "rating": [
        {
            "value": "4",
            "status": "done"
        }
    ],
    "review": [
        {
            "desc": "good",
            "comments": "test"
        }
    ]
}

After parsing the key name dynamically, I want to form all the key name in a comma separated and assigned to key_list variable like below:

key_list="product,inventory,rating,review"

After that I want to iterate key_list in a loop and print them or do something with that value. The desired output would be print the key name one by one in a loop:

product
inventory
rating
review

How can we achieve this using shell script jq?

CodePudding user response：

To produce a listing of the key names:

jq -r 'keys_unsorted[]'

To produce a comma-separated string with the key names, you could start with:

jq 'keys_unsorted|join(",")'