how to select a json object where a child value array contains a certain propery

Question

I have an array of objects similar to the following:

[
  {
    "id": "one",
    "tags": {
      "my.key": "true"
    }
  },
  {
    "id": "two",
  }
]

How can I select all "id" values for each object containing a tag where "my.key" is "true"?

Bertrand Martel · Accepted Answer · 2016-12-28 21:43:35Z

3

You can use a select with .tags["my.key"] == "true" and get only the id field :

jq '.[] | select(.tags["my.key"] == "true") | .id' data.json

answered Dec 28, 2016 at 21:43

Bertrand Martel

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2 Comments

Thanks for the speedy response! I also got an alternative solution based on another answer: map(select(.tags["my.key"] == "true")) | .[] .id

which is pretty much the same thing. I had a typo in my "select" syntax which you helped me to find, thanks :)