s3.multipartUploadWithHeaders specifying checksum

Akka Libraries Akka Streams & Alpakka
, ,
1

Does the library support aws file checksum, validation?
I have tried the following code:

      val sink = S3
        .multipartUploadWithHeaders(
          bucket = bucket,
          key = dst,
          contentType = ContentTypes.`application/octet-stream`,
          s3Headers = S3Headers.create.withCustomHeaders(Map("x-amz-checksum-sha256" -> checksum))
        )

But that doesn’t seem to make any difference.

Tnx in advance.