# EventSourceMappingMetricsConfig
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The metrics configuration for your event source. Use this configuration object to define which metrics you want your event source mapping to produce.

## Contents
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 ** Metrics **   <a name="lambda-Type-EventSourceMappingMetricsConfig-Metrics"></a>
 The metrics you want your event source mapping to produce, including `EventCount`, `ErrorCount`, `KafkaMetrics`.   
+  `EventCount` to receive metrics related to the number of events processed by your event source mapping.
+  `ErrorCount` (Amazon MSK and self-managed Apache Kafka) to receive metrics related to the number of errors in your event source mapping processing.
+  `KafkaMetrics` (Amazon MSK and self-managed Apache Kafka) to receive metrics related to the Kafka consumers from your event source mapping.
 For more information about these metrics, see [ Event source mapping metrics](https://docs.aws.amazon.com/lambda/latest/dg/monitoring-metrics-types.html#event-source-mapping-metrics).   
Type: Array of strings  
Array Members: Minimum number of 0 items. Maximum number of 3 items.  
Valid Values: `EventCount | ErrorCount | KafkaMetrics`   
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\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/lambda-2015-03-31/EventSourceMappingMetricsConfig) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/lambda-2015-03-31/EventSourceMappingMetricsConfig) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/EventSourceMappingMetricsConfig)