Add new array element to an existing JSON array using jq for sendgrid API

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This question is related to a previous one.

In my case, I would like to simply add individual elements. I have the following input.json.

{
  "content": [
  ],
  "from": {
    "email": "[email protected]",
    "name": "Some Name"
  },
  "reply_to": {
    "email": "[email protected]",
    "name": "Some Name"
    },
  "personalizations": [{
    "to": [{
        "email": "[email protected]"
      },
      {
        "email": "[email protected]"
      }]
    }]
}

I would like to append the subject and template_id so that the output.json looks like below.

{
  "content": [
  ],
  "from": {
    "email": "[email protected]",
    "name": "Some Name"
  },
  "reply_to": {
    "email": "[email protected]",
    "name": "Some Name"
    },
  "personalizations": [{
    "to": [{
        "email": "[email protected]"
      },
      {
        "email": "[email protected]"
      }],
    "subject": "Some subject"
    }],
    "template_id": "someID"
}

How would I do that with jq (including the syntax for input.json and output.json) in bash?

RomanPerekhrest · Accepted Answer · 2017-11-01 11:49:02Z

1

With simple assignment:

jq '.template_id="someID" | .personalizations[0].subject="Some subject"' input.json

The output:

{
  "content": [],
  "from": {
    "email": "[email protected]",
    "name": "Some Name"
  },
  "reply_to": {
    "email": "[email protected]",
    "name": "Some Name"
  },
  "personalizations": [
    {
      "to": [
        {
          "email": "[email protected]"
        },
        {
          "email": "[email protected]"
        }
      ],
      "subject": "Some subject"
    }
  ],
  "template_id": "someID"
}

answered Nov 1, 2017 at 11:49

RomanPerekhrest

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