MultipartUpload uses an operation queue to chunk up and upload all pieces of a large file to S3. It does not handle persistence so if you only get part way through an upload, you have to manage the process of re-uploading again.

1. Reachability - The best version to use is this one: https://github.com/tonymillion/Reachability
2. AWSiOSSDK.framework - Part of the AWS iOS SDK download: http://aws.amazon.com/sdkforios/
3. SystemConfiguration.framework - Part of the standard iOS SDK
4. An AWS S3 account

See example application.

Create and retain an instance by passing your S3 credentials:

[self setUploader:[[[MultiPartFileUploader alloc] initWithS3Key:kS3AccessKey secret:kS3SecretKey bucket:kS3Bucket] autorelease]];

Create and retain an operation queue that can be used to do the individual part uploads:

[self setQueue:[[[NSOperationQueue alloc] init] autorelease]];

Pass a the URL for a locally-stored file to the uploader. Optionally set a delegate for progress updates.

[[self uploader] uploadFileAtUrl:url operationQueue:[self queue] delegate:self];