CODEWITHSUNDEEP
jsonobjectkeycommand-line-interfacejq
jaxim
jaxim

Reputation: 1115

jq - Create JSON object map from environment variables

I am using jq 1.5 and trying to pass two environment variables via jq to create a json object:

export REGIONS="region1,region2"
export KMS_KEYS="key1,key2"

test.json

{
    "builders": [
    {
      "name": "aws"
    }
  ]
}

using the following command:

jq --arg regions $REGIONS --arg kmskeys $KMS_KEYS '.builders[].region_kms_key_ids={$regions}' test.json

current outcome:

{
  "builders": [
    {
      "name": "aws",
      "region_kms_key_ids": {
        "regions": "region1,region2"
      }
    }
  ]
}

desired outcome:

{
    "builders": [
    {
      "name": "aws",
      "region_kms_key_ids": {
        "region1": "key1",
        "region2": "key2"
      }
    }
  ]
}

I'm stuck on how to use my REGIONS variable content as the keys and KMS_KEYS variable as the values. Any advice would be appreciated

Upvotes: 0

Views: 1805

Answers (1)

oguz ismail
oguz ismail

Reputation: 50805

Split $regions and $kmskeys by commas into two separate arrays, transpose them to pair each region with corresponding kms key and make objects out of them, then add them together to form a single object. E.g:

.builders[].region_kms_key_ids = (
    [ $regions/",", $kmskeys/"," ] | transpose | map({(.[0]):.[1]}) | add
)

Upvotes: 2

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