# Extract From a Field Name and Add Fields

**URL:** <https://discuss.elastic.co/t/extract-from-a-field-name-and-add-fields/216911>\
**Category:** Logstash\
**Created:** [January 28, 2020, 8:55pm UTC](https://discuss.elastic.co/t/extract-from-a-field-name-and-add-fields/216911 "2020-01-28T20:55:32Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![mfisher](https://avatars.discourse-cdn.com/v4/letter/m/ed655f/32.png) [@mfisher](https://discuss.elastic.co/u/mfisher)\
**Post date:** [January 28, 2020, 11:50pm UTC](https://discuss.elastic.co/t/extract-from-a-field-name-and-add-fields/216911/4 "2020-01-28T23:50:50Z")

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The fields and values are being populated with a ruby script from nested JSON. This thread shows all the configs associated. [Utilize Data Parsed From Nested JSON](https://discuss.elastic.co/t/utilize-data-parsed-from-nested-json/216339)

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_[View the full topic](https://discuss.elastic.co/t/extract-from-a-field-name-and-add-fields/216911)._