C# |
public CompleteMultipartUploadResponse CompleteMultipartUpload( CompleteMultipartUploadRequest request )
- request (CompleteMultipartUploadRequest)
- The CompleteMultipartUploadRequest that defines the parameters of the operation.
You first upload all parts using the UploadPart method. After successfully uploading all relevant parts of an upload, you call this operation to complete the upload. Upon receiving this request, Amazon S3 concatenates all the parts in ascending order by part number to create a new object. In the CompleteMultipartUpload request, you must provide the parts list. For each part in the list, you provide the part number and the ETag header value, returned after that part was uploaded.
Processing of a CompleteMultipartUpload request may take several minutes to complete.
This example shows how to upload 13MB of data using mutlipart upload.
The data is contained in a stream and the upload is done in 3 parts:
5MB, 5MB, then the remainder.
int MB = (int)Math.Pow(2, 20); // Create a client AmazonS3Client client = new AmazonS3Client(); // Define input stream Stream inputStream = Create13MBDataStream(); // Initiate multipart upload InitiateMultipartUploadRequest initRequest = new InitiateMultipartUploadRequest { BucketName = "SampleBucket", Key = "Item1" }; InitiateMultipartUploadResponse initResponse = client.InitiateMultipartUpload(initRequest); // Upload part 1 UploadPartRequest uploadRequest = new UploadPartRequest { BucketName = "SampleBucket", Key = "Item1", UploadId = initResponse.UploadId, PartNumber = 1, PartSize = 5 * MB, InputStream = inputStream }; UploadPartResponse up1Response = client.UploadPart(uploadRequest); // Upload part 2 uploadRequest = new UploadPartRequest { BucketName = "SampleBucket", Key = "Item1", UploadId = initResponse.UploadId, PartNumber = 2, PartSize = 5 * MB, InputStream = inputStream }; UploadPartResponse up2Response = client.UploadPart(uploadRequest); // Upload part 3 uploadRequest = new UploadPartRequest { BucketName = "SampleBucket", Key = "Item1", UploadId = initResponse.UploadId, PartNumber = 3, InputStream = inputStream }; UploadPartResponse up3Response = client.UploadPart(uploadRequest); // List parts for current upload ListPartsRequest listPartRequest = new ListPartsRequest { BucketName = "SampleBucket", Key = "Item1", UploadId = initResponse.UploadId }; ListPartsResponse listPartResponse = client.ListParts(listPartRequest); Debug.Assert(listPartResponse.Parts.Count == 3); // Complete the multipart upload CompleteMultipartUploadRequest compRequest = new CompleteMultipartUploadRequest { BucketName = "SampleBucket", Key = "Item1", UploadId = initResponse.UploadId, PartETags = new List<PartETag> { new PartETag { ETag = up1Response.ETag, PartNumber = 1 }, new PartETag { ETag = up2Response.ETag, PartNumber = 2 }, new PartETag { ETag = up3Response.ETag, PartNumber = 3 } } }; CompleteMultipartUploadResponse compResponse = client.CompleteMultipartUpload(compRequest);