Field reference syntax

[eeveaud (Eric Deveaud)]

@magnusbaeck

It's the responsibility of each plugin.

    uidNumber => [uid]

This needs to be

    uidNumber => "%{uid}"

and then you can use event.sprintf(@uidNumber) in your code to have the value of the uidNumber configuration parameter expanded.

thanks Magnus, just updated the plugin code and it works perfectly.
maybee this point should be mentioned in the "How to write a Logstash filter plugin" reference document.

best regards

Eric