NewUploader creates a new UploaderImpl instance to upload objects to S3.

DefaultUploadConcurrency is the default number of goroutines to spin up when using Upload().

DefaultUploadPartSize is the default part size to buffer chunks of a payload into.

MaxConcurrency is the maximum number of goroutines to upload parts in parallel.

MaxUploadParts is the maximum allowed number of parts in a multipart upload on Amazon S3.

MaxUploadPartSize is the maximum allowed part size when uploading a part to Amazon S3.

MinUploadPartSize is the minimum allowed part size when uploading a part to Amazon S3.

The UploaderImpl structure that calls Upload().