How to re-name field names in logstash

Elastic Stack Logstash
1

Hi all,
We have field names like client.geo.name and event.category , how can we re-name the names to this client geo name and event category.
"[event][category]" => "Event category"
"[client][geo][name]" => "client geo location"

We want to achieve this via ruby code

TIA

2

I already answered that question when you asked it here.

3

but that works only on the first part of the fields (that is there are 2 words in fields[event][category] ) how about 3 words in the fields ([client][geo][name]) and so on.. ?

4

You would have to write a ruby filter that recursively descends into the fields on the event. There is an example of that here.