Javascript library similar to grok plugin

I am researching the possibility of developing a desktop app that allows parsing of log files. As a personal learning exercise, I'd like to do it using the electronjs framework.

I really like the logstash-grok DSL for configuring parsing of log lines, specifically the set of predefined field types, and common log file formats.

Does anyone know of anything similar in the javascript world? I haven't been able to turn up anything in google, FWIW. There are "lower level" pattern matching libraries, such as but without all the nice extra stuff on top that grok has.


Nevermind, I found which looks as though it might do the job.

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