# Difference
<a name="API_Difference"></a>

Returns information about a set of differences for a commit specifier.

## Contents
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 ** afterBlob **   <a name="CodeCommit-Type-Difference-afterBlob"></a>
Information about an `afterBlob` data type object, including the ID, the file mode permission code, and the path.  
Type: [BlobMetadata](API_BlobMetadata.md) object  
Required: No

 ** beforeBlob **   <a name="CodeCommit-Type-Difference-beforeBlob"></a>
Information about a `beforeBlob` data type object, including the ID, the file mode permission code, and the path.  
Type: [BlobMetadata](API_BlobMetadata.md) object  
Required: No

 ** changeType **   <a name="CodeCommit-Type-Difference-changeType"></a>
Whether the change type of the difference is an addition (A), deletion (D), or modification (M).  
Type: String  
Valid Values: `A | M | D`   
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/Difference) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/codecommit-2015-04-13/Difference) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/codecommit-2015-04-13/Difference)