# Insert multiple fields in nested array

**URL:** <https://discuss.elastic.co/t/insert-multiple-fields-in-nested-array/327415>\
**Category:** Logstash\
**Created:** [March 10, 2023, 6:02am UTC](https://discuss.elastic.co/t/insert-multiple-fields-in-nested-array/327415 "2023-03-10T06:02:22Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Claudio\_Ract\_Costa](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/claudio_ract_costa/32/26095_2.png) [@Claudio\_Ract\_Costa](https://discuss.elastic.co/u/Claudio_Ract_Costa)\
**Post date:** [March 10, 2023, 6:02am UTC](https://discuss.elastic.co/t/insert-multiple-fields-in-nested-array/327415/1 "2023-03-10T06:02:22Z")

</div>

Hi Guys

I have the following input as example:

` generator { count => 1 lines => ['{ "RATING_GROUP": "7,843,13", "CONSUMO": "328994,29715,13948" }'] codec => json }`

Which **filter** can I use in **Logstash** to obtain a **output** like this one bellow ?

```auto
{
  "rating_group_consumo" : [ 
    {
      "rating_group" : "7",
      "consumo" : "328994"
    },
    {
      "rating_group" : "843",
      "consumo" : "29715"
    },
    {
      "rating_group" : "13",
      "consumo" : "13948"
    }
  ]
}

```

---

<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [March 10, 2023, 5:33pm UTC](https://discuss.elastic.co/t/insert-multiple-fields-in-nested-array/327415/2 "2023-03-10T17:33:18Z")

</div>

You would have to do that in a ruby filter

```
    ruby {
        code => '
            consumo = event.get("CONSUMO")
            group = event.get("RATING_GROUP")
            begin
                consumo = consumo.split(",")
                group = group.split(",")
                a = []
                consumo.each_index { |x|
                    a << { "rating_group" => group[x], "consumo" => consumo[x] }
                }
                event.set("rating_group_consumo", a)
            rescue
            end
        '
    }

```

---

<div class="post-metadata">

**Author:** ![Claudio\_Ract\_Costa](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/claudio_ract_costa/32/26095_2.png) [@Claudio\_Ract\_Costa](https://discuss.elastic.co/u/Claudio_Ract_Costa)\
**Post date:** [March 11, 2023, 1:21am UTC](https://discuss.elastic.co/t/insert-multiple-fields-in-nested-array/327415/3 "2023-03-11T01:21:59Z")

</div>

Thanks Badger !! It works perfectly 🤜 🤛

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 8, 2023, 1:22am UTC](https://discuss.elastic.co/t/insert-multiple-fields-in-nested-array/327415/4 "2023-04-08T01:22:51Z")

</div>

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