static void Main(string[] args)
{
IAmazonS3 s3Client = new AmazonS3Client(Amazon.RegionEndpoint.USEast1);
// List to store upload part responses.
List<UploadPartResponse> uploadResponses = new List<UploadPartResponse>();
List<CopyPartResponse> copyResponses = new List<CopyPartResponse>();
InitiateMultipartUploadRequest initiateRequest =
new InitiateMultipartUploadRequest
{
BucketName = targetBucket,
Key = targetObjectKey
};
InitiateMultipartUploadResponse initResponse =
s3Client.InitiateMultipartUpload(initiateRequest);
String uploadId = initResponse.UploadId;
try
{
// Get object size.
GetObjectMetadataRequest metadataRequest = new GetObjectMetadataRequest
{
BucketName = sourceBucket,
Key = sourceObjectKey
};
GetObjectMetadataResponse metadataResponse =
s3Client.GetObjectMetadata(metadataRequest);
long objectSize = metadataResponse.ContentLength; // in bytes
// Copy parts.
long partSize = 5 * (long)Math.Pow(2, 20); // 5 MB
long bytePosition = 0;
for (int i = 1; bytePosition < objectSize; i++)
{
CopyPartRequest copyRequest = new CopyPartRequest
{
DestinationBucket = targetBucket,
DestinationKey = targetObjectKey,
SourceBucket = sourceBucket,
SourceKey = sourceObjectKey,
UploadId = uploadId,
FirstByte = bytePosition,
LastByte = bytePosition + partSize - 1 >= objectSize ? objectSize - 1 : bytePosition + partSize - 1,
PartNumber = i
};
copyResponses.Add(s3Client.CopyPart(copyRequest));
bytePosition += partSize;
}
CompleteMultipartUploadRequest completeRequest =
new CompleteMultipartUploadRequest
{
BucketName = targetBucket,
Key = targetObjectKey,
UploadId = initResponse.UploadId
};
completeRequest.AddPartETags(copyResponses);
CompleteMultipartUploadResponse completeUploadResponse = s3Client.CompleteMultipartUpload(completeRequest);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}