return madmin.HealResultItem{}, toObjectErr(errVolumeNotFound, bucket)
}

// ListBuckets lists buckets across all nodes and returns a consistent view:
//   - Return an error when a pool cannot return N/2+1 valid bucket information
//   - For each pool, check if the bucket exists in N/2+1 nodes before including it in the final result
func (sys *S3PeerSys) ListBuckets(ctx context.Context, opts BucketOptions) ([]BucketInfo, error) {

func TestListBuckets(t *testing.T) {
	ExecObjectLayerTest(t, testListBuckets)
}

// Tests validate ListBuckets.
func testListBuckets(obj ObjectLayer, instanceType string, t TestErrHandler) {
	// test empty list.
	buckets, err := obj.ListBuckets(context.Background(), BucketOptions{})
	if err != nil {
		t.Fatalf("%s: <ERROR> %s", instanceType, err)
	}
	if len(buckets) != 0 {

}

// BucketOptions provides options for ListBuckets and GetBucketInfo call.
type BucketOptions struct {
	Deleted    bool // true only when site replication is enabled
	Cached     bool // true only when we are requesting a cached response instead of hitting the disk for example ListBuckets() call.
	NoMetadata bool
}

// Only a shallow copy is returned, so referenced data should not be modified,
// but can be replaced atomically.
//
// This function should only be used with
// - GetBucketInfo
// - ListBuckets
// For all other bucket specific metadata, use the relevant
// calls implemented specifically for each of those features.
func (sys *BucketMetadataSys) Get(bucket string) (BucketMetadata, error) {

func generateListBucketsResponse(buckets []BucketInfo) ListBucketsResponse {
	listbuckets := make([]Bucket, 0, len(buckets))
	data := ListBucketsResponse{}
	owner := Owner{
		ID:          globalMinioDefaultOwnerID,
		DisplayName: "minio",
	}

	for _, bucket := range buckets {
		listbuckets = append(listbuckets, Bucket{
			Name:         bucket.Name,
			CreationDate: amztime.ISO8601Format(bucket.Created.UTC()),

	// Verify if region is valid.
	sRegion := cred.scope.region
	// Region is set to be empty, we use whatever was sent by the
	// request and proceed further. This is a work-around to address
	// an important problem for ListBuckets() getting signed with
	// different regions.
	if region == "" {
		region = sRegion
	}
	// Should validate region, only if region is set.
	if !isValidRegion(sRegion, region) {

		log.Fatalln(err)
	}

	if debug {
		s3Client.TraceOn(os.Stderr)
	}

	var buckets []string
	if bucket != "" {
		buckets = append(buckets, bucket)
	} else {
		bucketsInfo, err := s3Client.ListBuckets(context.Background())
		if err != nil {
			log.Fatalln(err)
		}
		for _, b := range bucketsInfo {
			buckets = append(buckets, b.Name)
		}
	}

	for _, bucket := range buckets {

		Queries("events", "{events:.*}")

	// ListBuckets
	apiRouter.Methods(http.MethodGet).Path(SlashSeparator).
		HandlerFunc(s3APIMiddleware(api.ListBucketsHandler))

	// S3 browser with signature v4 adds '//' for ListBuckets request, so rather
	// than failing with UnknownAPIRequest we simply handle it for now.

		if err != nil {
			log.Println(fmt.Errorf("Error while initializing Minio client, %s", err))
			http.Error(w, err.Error(), http.StatusBadRequest)
			return
		}
		buckets, err := clnt.ListBuckets(r.Context())
		if err != nil {
			log.Println(fmt.Errorf("Error while listing buckets, %s", err))
			http.Error(w, err.Error(), http.StatusBadRequest)
			return
		}
		creds, _ := sts.Get()

	// lists all unique buckets across drives.
	if err := listAllBuckets(ctx, localDrives, healBuckets, quorum); err != nil {
		return nil, err
	}

	// include deleted buckets in listBuckets output
	deletedBuckets := map[string]VolInfo{}

	if opts.Deleted {
		// lists all deleted buckets across drives.
		if err := listDeletedBuckets(ctx, localDrives, deletedBuckets, quorum); err != nil {