In my Logstash pipeline, I am loading JSON messages and later use a ruby filter to detect and apply special logic to fields with null values. ruby { code => " event.to_hash.each { |key,value| if value == nil //some logic here end }" } It works great when the…

Ruby filter - detect null values inside structure

Badger October 28, 2019, 4:48pm 2

Use a script and iterate over the objects. Something like this or this.

Topic		Replies	Views
Removing null fields from nexted fields - xml filter Logstash	6	1186	July 6, 2017
Iterating through all fields in a JSON message, checking for null values Logstash	2	752	September 1, 2017
Logstash nested conditional statement one with null check Logstash	4	1627	April 10, 2017
Change "null" to null value Logstash	2	959	July 30, 2018
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Ruby filter - detect null values inside structure

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