// update metadata.
func (er erasureObjects) CopyObject(ctx context.Context, srcBucket, srcObject, dstBucket, dstObject string, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (oi ObjectInfo, err error) {
	if !dstOpts.NoAuditLog {
		auditObjectErasureSet(ctx, "CopyObject", dstObject, &er)
	}

	// This call shouldn't be used for anything other than metadata updates or adding self referential versions.

# Select API Quickstart Guide [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io)

Traditional retrieval of objects is always as whole entities, i.e GetObject for a 5 GiB object, will always return 5 GiB of data. S3 Select API allows us to retrieve a subset of data by using simple SQL expressions. By using Select API to retrieve only the data needed by the application, drastic performance improvements can be achieved.

	policy := "mypolicy"
	policyBytes := []byte(`{
 "Version": "2012-10-17",
 "Statement": [
  {
   "Effect": "Allow",
   "Action": [
    "s3:PutObject",
    "s3:GetObject",
    "s3:ListBucket"
   ],
   "Resource": [
    "arn:aws:s3:::BUCKET/*"
   ]
  }
 ]
}`)

	err := s.adm.AddCannedPolicy(ctx, policy, policyBytes)
	if err != nil {

	if bucket == "" {
		return nil, errors.New("bucket name cannot be empty")
	}

	clnt, err := f.getMinIOClient()
	if err != nil {
		return nil, err
	}

	obj, err := clnt.GetObject(context.Background(), bucket, object, minio.GetObjectOptions{})
	if err != nil {
		return nil, err
	}

	_, err = obj.Stat()
	if err != nil {
		return nil, err
	}

	return obj, nil
}

		JobID:     job.ID,
		JobType:   string(job.Type()),
		StartTime: job.Started,
	}
	if err := ri.loadOrInit(ctx, api, job); err != nil {
		return err
	}

	globalBatchJobsMetrics.save(job.ID, ri)
	lastObject := ri.Object

	now := time.Now().UTC()

	workerSize, err := strconv.Atoi(env.Get("_MINIO_BATCH_EXPIRATION_WORKERS", strconv.Itoa(runtime.GOMAXPROCS(0)/2)))
	if err != nil {
		return err
	}

				return
			}
			for {
				if objCountPerThread[i] == j {
					j = 0
				}
				tmpObjName := pathJoin(objNamePrefix, fmt.Sprintf("%d/%d", i, j))
				t := time.Now()

				r, _, _, err := c.GetObject(downloadsCtx, opts.bucketName, tmpObjName, gopts)
				if err != nil {
					errResp, ok := err.(minio.ErrorResponse)
					if ok && errResp.StatusCode == http.StatusNotFound {
						continue
					}

   "Resource": [
    "arn:aws:s3:::destbucket"
   ]
  },
  {
   "Effect": "Allow",
   "Action": [
    "s3:GetReplicationConfiguration",
    "s3:ReplicateTags",
    "s3:AbortMultipartUpload",
    "s3:GetObject",
    "s3:GetObjectVersion",
    "s3:GetObjectVersionTagging",
    "s3:PutObject",
    "s3:DeleteObject",
    "s3:ReplicateObject",
    "s3:ReplicateDelete"
   ],
   "Resource": [

	getObjectTaggingAPI    replProxyAPI = "GetObjectTagging"
	removeObjectTaggingAPI replProxyAPI = "RemoveObjectTagging"
	headObjectAPI          replProxyAPI = "HeadObject"
	getObjectAPI           replProxyAPI = "GetObject"
)

// ProxyMetric holds stats for replication proxying
type ProxyMetric struct {
	PutTagTotal       uint64 `json:"putTaggingProxyTotal" msg:"ptc"`
	GetTagTotal       uint64 `json:"getTaggingProxyTotal" msg:"gtc"`

        final GetObjectArgs args = GetObjectArgs.builder().bucket(fessConfig.getStorageBucket()).object(objectName).build();
        try (InputStream in = createClient(fessConfig).getObject(args)) {
            out.write(in);
        } catch (final Exception e) {
            throw new StorageException("Failed to download " + objectName, e);
        }
    }

    /**

		case "HeadObject":
			// Register HeadObject handler.
			bucket.Methods("Head").Path("/{object:.+}").HandlerFunc(api.HeadObjectHandler)
		case "GetObject":
			// Register GetObject handler.
			bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(api.GetObjectHandler)
		case "PutObject":
			// Register PutObject handler.