# SourceMetricsConfiguration
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Configuration for selecting source metrics for centralization.

## Contents
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 ** MetricsSelectionCriteria **   <a name="cwoa-Type-SourceMetricsConfiguration-MetricsSelectionCriteria"></a>
The filter expression that selects which source metrics to centralize. Currently, only `*` (all metrics) is supported. Other values return a validation error.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 2000.  
Required: No

## 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\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/observabilityadmin-2018-05-10/SourceMetricsConfiguration) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/observabilityadmin-2018-05-10/SourceMetricsConfiguration) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/observabilityadmin-2018-05-10/SourceMetricsConfiguration)