# MetricsExportConfig
<a name="API_MetricsExportConfig"></a>

Set configurations for metrics export.

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

 ** mqttTopic **   <a name="iot-Type-MetricsExportConfig-mqttTopic"></a>
The MQTT topic that Device Defender Detect should publish messages to for metrics export.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 512.  
Required: Yes

 ** roleArn **   <a name="iot-Type-MetricsExportConfig-roleArn"></a>
This role ARN has permission to publish MQTT messages, after which Device Defender Detect can assume the role and publish messages on your behalf.  
Type: String  
Length Constraints: Minimum length of 20. Maximum length of 2048.  
Required: Yes

## See Also
<a name="API_MetricsExportConfig_SeeAlso"></a>

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/iot-2015-05-28/MetricsExportConfig) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iot-2015-05-28/MetricsExportConfig) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iot-2015-05-28/MetricsExportConfig)