Determine array length in Pipeline Rule

Graylog Central (peer support)
1

Hi. How do I determine the number of elements in an array? I have a JSON and want to add fields which say the number of elements in the JSON.

{
   "ele1": [...],
   "ele2": [...]
}

Based on this I would like to pretty much count the elements in ele1 and ele2 and set fields.

set_field("ele1", ele1Length);
set_field("ele2", ele2Length);

How can I determine the lengths?

Thanks for your help!

2

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