# PullRequestSourceReferenceUpdatedEventMetadata
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Information about an update to the source branch of a pull request.

## Contents
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 ** afterCommitId **   <a name="CodeCommit-Type-PullRequestSourceReferenceUpdatedEventMetadata-afterCommitId"></a>
The full commit ID of the commit in the source branch that was the tip of the branch at the time the pull request was updated.  
Type: String  
Required: No

 ** beforeCommitId **   <a name="CodeCommit-Type-PullRequestSourceReferenceUpdatedEventMetadata-beforeCommitId"></a>
The full commit ID of the commit in the destination branch that was the tip of the branch at the time the pull request was updated.  
Type: String  
Required: No

 ** mergeBase **   <a name="CodeCommit-Type-PullRequestSourceReferenceUpdatedEventMetadata-mergeBase"></a>
The commit ID of the most recent commit that the source branch and the destination branch have in common.  
Type: String  
Required: No

 ** repositoryName **   <a name="CodeCommit-Type-PullRequestSourceReferenceUpdatedEventMetadata-repositoryName"></a>
The name of the repository where the pull request was updated.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 100.  
Pattern: `[\w\.-]+`   
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/codecommit-2015-04-13/PullRequestSourceReferenceUpdatedEventMetadata) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/codecommit-2015-04-13/PullRequestSourceReferenceUpdatedEventMetadata) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/codecommit-2015-04-13/PullRequestSourceReferenceUpdatedEventMetadata)