# Parsing a list of lists with logstash filter

**URL:** https://discuss.elastic.co/t/parsing-a-list-of-lists-with-logstash-filter/314747
**Category:** Logstash
**Created:** [September 20, 2022, 7:29am UTC](https://discuss.elastic.co/t/parsing-a-list-of-lists-with-logstash-filter/314747 "2022-09-20T07:29:24Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [September 20, 2022, 12:10pm UTC](https://discuss.elastic.co/t/parsing-a-list-of-lists-with-logstash-filter/314747/2 "2022-09-20T12:10:42Z")

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You will need to use a ruby filter, something similar to [this](https://discuss.elastic.co/t/solved-split-filter-question-a-k-a-flatten-json-sub-array/130481/12).

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