# TrimString
<a name="API_TrimString"></a>

Use this processor to remove leading and trailing whitespace.

For more information about this processor including examples, see [ trimString](https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/CloudWatch-Logs-Transformation.html#CloudWatch-Logs-Transformation-trimString) in the *CloudWatch Logs User Guide*.

## Contents
<a name="API_TrimString_Contents"></a>

 ** withKeys **   <a name="CWL-Type-TrimString-withKeys"></a>
The array containing the keys of the fields to trim.  
Type: Array of strings  
Array Members: Minimum number of 1 item. Maximum number of 10 items.  
Length Constraints: Minimum length of 1.  
Required: Yes

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/logs-2014-03-28/TrimString) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/logs-2014-03-28/TrimString) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/logs-2014-03-28/TrimString)