AWS SDK Version 3 for .NET
API Reference

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Initiates a multipart upload and returns an upload ID.

Note: After you initiate multipart upload and upload one or more parts, you must either complete or abort multipart upload in order to stop getting charged for storage of the uploaded parts. Only after you either complete or abort multipart upload, Amazon S3 frees up the parts storage and stops charging you for the parts storage.

Note:

This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginInitiateMultipartUpload and EndInitiateMultipartUpload. For Unity the operation does not take CancellationToken as a parameter, and instead takes AmazonServiceCallback<InitiateMultipartUploadRequest, InitiateMultipartUploadResponse> and AsyncOptions as additional parameters.

Namespace: Amazon.S3
Assembly: AWSSDK.S3.dll
Version: 3.x.y.z

Syntax

C#
public abstract Task<InitiateMultipartUploadResponse> InitiateMultipartUploadAsync(
         String bucketName,
         String key,
         CancellationToken cancellationToken
)
Parameters
bucketName
Type: System.String

A property of InitiateMultipartUploadRequest used to execute the InitiateMultipartUpload service method.

key
Type: System.String

A property of InitiateMultipartUploadRequest used to execute the InitiateMultipartUpload service method.

cancellationToken
Type: System.Threading.CancellationToken

A cancellation token that can be used by other objects or threads to receive notice of cancellation.

Return Value
The response from the InitiateMultipartUpload service method, as returned by S3.

Version Information

.NET Standard:
Supported in: 1.3

.NET Framework:
Supported in: 4.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

Unity:
Supported Versions: 4.6 and above
Supported Platforms: Android, iOS, Standalone