# DataTransformationS3Configuration
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The Amazon S3 output configuration for a data transformation job, including the output location and encryption settings.

## Contents
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 ** KmsKeyId **   <a name="HealthLake-Type-DataTransformationS3Configuration-KmsKeyId"></a>
The AWS Key Management Service (AWS KMS) key identifier used to encrypt the transformation job output written to Amazon S3.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 2048.  
Required: Yes

 ** S3Uri **   <a name="HealthLake-Type-DataTransformationS3Configuration-S3Uri"></a>
The Amazon S3 URI where AWS HealthLake writes the converted output files.  
Type: String  
Length Constraints: Minimum length of 8. Maximum length of 2048.  
Pattern: `s3://[a-z0-9][a-z0-9.\-]{1,61}[a-z0-9](/.+)?`   
Required: Yes

## 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\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/healthlake-2017-07-01/DataTransformationS3Configuration) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/healthlake-2017-07-01/DataTransformationS3Configuration) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/healthlake-2017-07-01/DataTransformationS3Configuration)