```Python hl_lines="2  14"
{!../../docs_src/custom_response/tutorial007.py!}
```

#### Using `StreamingResponse` with file-like objects

If you have a file-like object (e.g. the object returned by `open()`), you can create a generator function to iterate over that file-like object.

That way, you don't have to read it all first in memory, and you can pass that generator function to the `StreamingResponse`, and return it.

	c.Helper()

	r, err := client.GetObject(ctx, bucket, object, minio.GetObjectOptions{})
	if err != nil {
		c.Fatalf("user was unable to download the object: %v", err)
	}
	defer r.Close()

	_, err = io.Copy(io.Discard, r)
	if err != nil {
		c.Fatalf("user was unable to download the object: %v", err)
	}
}

	// Indicates whether MinIO will remove all versions. If set to true, all versions will be deleted;
	// if set to false the policy takes no action. This action uses the Days/Date to expire objects.
	// This check is verified for latest version of the object.
	DeleteAll Boolean `xml:"ExpiredObjectAllVersions"`

	set bool
}

// MarshalXML encodes delete marker boolean into an XML form.

	"github.com/minio/pkg/v3/xtime"
)

//go:generate msgp -file $GOFILE

// replicate:
//   # source of the objects to be replicated
//   source:
//     type: "minio"
//     bucket: "testbucket"
//     prefix: "spark/"
//
//   # optional flags based filtering criteria
//   # for source objects
//   flags:
//     filter:
//       newerThan: "7d"
//       olderThan: "7d"
//       createdAfter: "date"

	globalNetPerfRX              netPerfRX
	globalSiteNetPerfRX          netPerfRX
	globalObjectPerfBucket       = "minio-perf-test-tmp-bucket"
	globalObjectPerfUserMetadata = "X-Amz-Meta-Minio-Object-Perf" // Clients can set this to bypass S3 API service freeze. Used by object pref tests.

	// MinIO version unix timestamp
	globalVersionUnix uint64

	// MinIO client
	globalMinioClient *minio.Client

		Object:    object,
		VersionID: versionID,
		DiskCount: len(storageDisks),
	}

	if !opts.NoLock {
		lk := er.NewNSLock(bucket, object)
		lkctx, err := lk.GetLock(ctx, globalOperationTimeout)
		if err != nil {
			return result, err
		}
		ctx = lkctx.Context()
		defer lk.Unlock(lkctx)
	}

	// Re-read when we have lock...

les convertir en quelque chose qui peut être envoyé sur le réseau. Par exemple, convertir un objet contenant des
données provenant d'une base de données en un objet JSON. Convertir des objets `datetime` en strings, etc.

La validation des données est une autre fonctionnalité importante dont ont besoin les API. Elle permet de s'assurer

MINIO_STORAGE_CLASS_RRS: Format "EC:<Default_Parity_Reduced_Redundancy_Class>" (e.g. "EC:3"). This sets the number of parity drives for MinIO server in Reduced Redundancy mode. Objects are stored in Reduced Redundancy mode, if Put request specifies RRS storage class

// ObjectSegmentReaderFn is a function that returns a reader for a contiguous
// suffix segment of an object starting at the given (non-negative) offset.
type ObjectSegmentReaderFn func(offset int64) (io.ReadCloser, error)

// ObjectReadSeekCloser implements ReadSeekCloser interface for reading objects.
// It uses a function that returns a io.ReadCloser for the object.
type ObjectReadSeekCloser struct {
	segmentReader ObjectSegmentReaderFn

- A pool in decommission still allows READ access to all its contents, newer WRITEs will automatically be scheduled to only pools not in decommission status.
- All versioned buckets maintain the same order for "versions" for each object after being decommissioned to the other pools.
- A pool interrupted during the decommission process, such as for a cluster restart, resumes from where it left off.

## How to decommission a pool

```