# EventSubscription
<a name="API_EventSubscription"></a>

Indicates an event you would like to subscribe and get notification for. Currently, AWS Resilience Hub supports notifications only for **Drift detected** and **Scheduled assessment failure** events.

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

 ** eventType **   <a name="resiliencehub-Type-EventSubscription-eventType"></a>
The type of event you would like to subscribe and get notification for. Currently, AWS Resilience Hub supports notifications only for **Drift detected** (`DriftDetected`) and **Scheduled assessment failure** (`ScheduledAssessmentFailure`) events.  
Type: String  
Valid Values: `ScheduledAssessmentFailure | DriftDetected`   
Required: Yes

 ** name **   <a name="resiliencehub-Type-EventSubscription-name"></a>
Unique name to identify an event subscription.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 255.  
Required: Yes

 ** snsTopicArn **   <a name="resiliencehub-Type-EventSubscription-snsTopicArn"></a>
Amazon Resource Name (ARN) of the Amazon Simple Notification Service topic. The format for this ARN is: `arn:partition:sns:region:account:topic-name`. For more information about ARNs, see [ Amazon Resource Names (ARNs)](https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html) in the * AWS General Reference* guide.  
Type: String  
Pattern: `arn:(aws|aws-cn|aws-iso|aws-iso-[a-z]{1}|aws-us-gov):[A-Za-z0-9][A-Za-z0-9_/.-]{0,62}:([a-z]{2}-((iso[a-z]{0,1}-)|(gov-)){0,1}[a-z]+-[0-9]):[0-9]{12}:[A-Za-z0-9/][A-Za-z0-9:_/+.-]{0,1023}`   
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/resiliencehub-2020-04-30/EventSubscription) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/resiliencehub-2020-04-30/EventSubscription) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/resiliencehub-2020-04-30/EventSubscription)