# CopyValue


This processor copies values within a log event. You can also use this processor to add metadata to log events by copying the values of the following metadata keys into the log events: `@logGroupName`, `@logGroupStream`, `@accountId`, `@regionName`. 

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

## Contents


 ** entries **   <a name="CWL-Type-CopyValue-entries"></a>
An array of `CopyValueEntry` objects, where each object contains the information about one field value to copy.   
Type: Array of [CopyValueEntry](API_CopyValueEntry.md) objects  
Array Members: Minimum number of 1 item. Maximum number of 5 items.  
Required: Yes

## See Also


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/CopyValue) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/logs-2014-03-28/CopyValue) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/logs-2014-03-28/CopyValue)