# Filling Metadata with Elastic.Extensions.Logging

**URL:** https://discuss.elastic.co/t/filling-metadata-with-elastic-extensions-logging/377810
**Category:** Elastic Observability
**Tags:** ecs-elastic-common-schema
**Created:** [May 5, 2025, 11:20am UTC](https://discuss.elastic.co/t/filling-metadata-with-elastic-extensions-logging/377810 "2025-05-05T11:20:32Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![vicariouskp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vicariouskp/32/142942_2.png) [@vicariouskp](https://discuss.elastic.co/u/vicariouskp)
#### Post date: [May 5, 2025, 11:20am UTC](https://discuss.elastic.co/t/filling-metadata-with-elastic-extensions-logging/377810/1 "2025-05-05T11:20:32Z")

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Hello, I'm trying to use Elastic.Extensions.Logging nuget in c# application and I don't know how to add Metadata property. How can I for example log some custom made class passed as an one of the args object in the Logger.LogInformation?