Modifying an arrays value by index

Elastic Stack Logstash
1

Hello,
I'm pretty new to logstash, and I need to replace a value in an array, using a kv filter's value,
but when I want to use the index variable nothing happens, if I use a simple integer instead, it works fine, here is my code I'm using:
"template" => [
[0] "Ön lekérdezte ",
[1] "id",
[2] " azonosítójú kártyája adatait"
],
ruby {code => "

            event.get('template').each_with_index do |item,index|
              hash = event.get('kv')
              hash.each { |key,value|
                if key.include? 'id'
                    event.set('[template][#{index}]', value)
                  end
                }
             end

"}

Any ideas what I'm doing wrong?
Thank you

2

Hi there,

you using interpolation with single quoted string. You need double quotes to use it.

3

I'd refactor your code as following

filter {
  ruby {
    code => '
      hash = event.get("kv")
      event.get("template").each_with_index do |item, index|
        hash.each { |k, v| event.set("[template][#{index}]", v) if k.include? "id" }
      end
    '
  }
}
1 Like
4

Thank you! :slight_smile:

5

No problem

6

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