MinIO implements an S3 extension to the [PostUpload](https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPOST.html) where in a special fan-out list is sent along with the TSB's for MinIO make multiple uploads from a single source stream. Optionally supports custom metadata, tags and other retention settings. All objects are also readable independently once upload is completed via the regular S3 [GetObject](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html) API.

```
mc admin tier add s3 source S3TIER --bucket s3bucket --prefix testprefix/ --use-aws-role
```

Once transitioned, GET or HEAD on the object will stream the content from the transitioned tier. In the event that the object needs to be restored temporarily to the local cluster, the AWS [RestoreObject API](https://docs.aws.amazon.com/AmazonS3/latest/API/API_RestoreObject.html) can be utilized.

    conn := manager.Connection(host).Subroute("asubroute")
	
    payload := []byte("request")
    stream, err := conn.NewStream(ctx, grid.HandlerDiskInfo, payload)
	if err != nil {
        return err
    }
    // Read results from the stream
    err = stream.Results(func(result []byte) error {
        fmt.Println("Got result", string(result))

        // Return the response for reuse

objectStat, err := object.Stat()
if err != nil {
 log.Fatalln(err)
}

n, err := s3Client.PutObject("my-bucketname", "my-objectname", object, objectStat.Size(), minio.PutObjectOptions{ContentType: "application/octet-stream", StorageClass: "REDUCED_REDUNDANCY"})
if err != nil {
 log.Fatalln(err)
}
log.Println("Uploaded", "my-objectname", " of size: ", n, "Successfully.")

    "Content-Length": "380",
    "Content-Type": "application/octet-stream",
    "User-Agent": "MinIO (linux; amd64) minio-go/v7.0.15 mc/DEVELOPMENT.2021-10-06T23-39-34Z",
    "X-Amz-Content-Sha256": "STREAMING-AWS4-HMAC-SHA256-PAYLOAD",
    "X-Amz-Date": "20211008T004636Z",