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25 lines
755 B
Markdown
25 lines
755 B
Markdown
---
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layout: default
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title: lowercase_string
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parent: Processors
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grand_parent: Pipelines
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nav_order: 60
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---
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# lowercase_string
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The `lowercase_string` processor converts a string to its lowercase counterpart and is a [mutate string](https://github.com/opensearch-project/data-prepper/tree/main/data-prepper-plugins/mutate-string-processors#mutate-string-processors) processor. The following table describes options for configuring the `lowercase_string` processor to convert strings to a lowercase format.
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Option | Required | Type | Description
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:--- | :--- | :--- | :---
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with_keys | Yes | List | A list of keys to convert to lowercase.
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<!---## Configuration
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Content will be added to this section.
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## Metrics
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Content will be added to this section.--->
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