Set "fields" into array - SOLVED

Elastic Stack Logstash
3

Hello Magnus,

I tried your solution :

event.set("[entities][hashtags][#{hash}][#{key}]", value.downcase)

And I obtained this error message :

[ERROR][logstash.filters.ruby ] Ruby exception occurred: For input string: "{"indices"=>"

I don't understand because in my filter I test if "k == text" before to try to set the value :

event.get("[entities][hashtags]").each {|hash|
	hash.each { |key,value|
		if key == "text"
			event.tag(value.downcase)
			event.set("[entities][hashtags][#{hash}][#{key}]", value.downcase)
		end
	}
}'

Do you have any idea?