# Logstash: Custom filter, Can we access members/columns/fields of another filter in a custom filter?

**URL:** <https://discuss.elastic.co/t/logstash-custom-filter-can-we-access-members-columns-fields-of-another-filter-in-a-custom-filter/38156>\
**Category:** Logstash\
**Created:** [December 30, 2015, 7:10am UTC](https://discuss.elastic.co/t/logstash-custom-filter-can-we-access-members-columns-fields-of-another-filter-in-a-custom-filter/38156 "2015-12-30T07:10:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![krushnat\_khawale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/krushnat_khawale/32/6652_2.png) [@krushnat\_khawale](https://discuss.elastic.co/u/krushnat_khawale)\
**Post date:** [December 30, 2015, 7:10am UTC](https://discuss.elastic.co/t/logstash-custom-filter-can-we-access-members-columns-fields-of-another-filter-in-a-custom-filter/38156/1 "2015-12-30T07:10:40Z")

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**I am creating my own filter, as I am uploading a CSV file and I need to access fields in CSV in my custom filter.**  
**Is it possible to access those fields in my filter?**

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [January 2, 2016, 8:17am UTC](https://discuss.elastic.co/t/logstash-custom-filter-can-we-access-members-columns-fields-of-another-filter-in-a-custom-filter/38156/2 "2016-01-02T08:17:45Z")

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This is a duplicate of [Logstash Custom Filter: How to access, fields of csv being uploaded in a custom filter](https://discuss.elastic.co/t/logstash-custom-filter-how-to-access-fields-of-csv-being-uploaded-in-a-custom-filter/38098).

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [January 2, 2016, 8:17am UTC](https://discuss.elastic.co/t/logstash-custom-filter-can-we-access-members-columns-fields-of-another-filter-in-a-custom-filter/38156/3 "2016-01-02T08:17:50Z")

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