# AuditEvent
<a name="API_AuditEvent"></a>

An event from a source outside of AWS that you want CloudTrail to log.

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

 ** eventData **   <a name="awscloudtraildata-Type-AuditEvent-eventData"></a>
The content of an audit event that comes from the event, such as `userIdentity`, `userAgent`, and `eventSource`.  
Type: String  
Required: Yes

 ** id **   <a name="awscloudtraildata-Type-AuditEvent-id"></a>
The original event ID from the source event.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[-_A-Za-z0-9]+`   
Required: Yes

 ** eventDataChecksum **   <a name="awscloudtraildata-Type-AuditEvent-eventDataChecksum"></a>
A checksum is a base64-SHA256 algorithm that helps you verify that CloudTrail receives the event that matches with the checksum. Calculate the checksum by running a command like the following:  
 `printf %s $eventdata | openssl dgst -binary -sha256 | base64`   
Type: String  
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/cloudtrail-data-2021-08-11/AuditEvent) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudtrail-data-2021-08-11/AuditEvent) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudtrail-data-2021-08-11/AuditEvent)