Basic ruby field adding not working

Elastic Stack Logstash
1

Hi,

attempted to add a new field with ruby and not even a simple adding is working, what could be wrong?

input {
beats {
port => 5044
}
}

filter {
ruby {
code => "event['testfield'] = 'test'"
}
}

output {
elasticsearch {
hosts => ["http://localhost:9200"]
index => "test-%{+yyyy.MM.dd}"
}
}

The error:

[2020-03-16T21:44:36,713][ERROR][logstash.filters.ruby ][main] Ruby exception occurred: undefined method `=' for #LogStash::Event:0x115fa2a0

2

Elastic removed the ability to refer to an event as a hash years ago. Use the event.set API call.

3

Thank you, that was the problem, used an outdated documentation.

4

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