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i need to write a simple endpoint which receives a file via http and passes it on to the aws sdk transfermanager for uploading to S3. can i do it in a way that i only handle streams, so that the file is never fully read (to memory/disk). files are very, VERY big. how could i do that with ktor?

method i will probably use has this signature *<https://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/transfer/TransferManager.html#upload-java.lang.String-java.lang.String-java.io.InputStream-com.amazonaws.services.s3.model.ObjectMetadata-|upload>*(*<http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true|String>* bucketName, *<http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true|String>* key, *<http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true|InputStream>* input, *<https://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/model/ObjectMetadata.html|ObjectMetadata>* objectMetadata)