object

type Creator func(bucket, accessKey, secretKey string) (ObjectStorage, error)

type ObjectStorage interface {
	// Description of the object storage.
	String() string
	// Create the bucket if not existed.
	Create() error
	// Get the data for the given object specified by key.
	Get(key string, off, limit int64) (io.ReadCloser, error)
	// Put data read from a reader to an object specified by key.
	Put(key string, in io.Reader) error
	// Delete a object.
	Delete(key string) error
}