k.updateMetrics(err, time.Since(start))

	return err
}

// ListKeys returns a list of keys with metadata and a potential
// next name from where to continue a subsequent listing.
func (k *KMS) ListKeys(ctx context.Context, req *ListRequest) ([]madmin.KMSKeyInfo, string, error) {
	if req.Prefix == "*" {
		req.Prefix = ""
	}
	return k.conn.ListKeys(ctx, req)
}

func (s StubKMS) Status(context.Context) (map[string]madmin.ItemState, error) {
	return map[string]madmin.ItemState{
		"127.0.0.1": madmin.ItemOnline,
	}, nil
}

// ListKeys returns a list of keys with metadata.
func (s StubKMS) ListKeys(ctx context.Context, req *ListRequest) ([]madmin.KMSKeyInfo, string, error) {
	matches := []madmin.KMSKeyInfo{}
	if req.Prefix == "" {
		req.Prefix = "*"
	}

func (secretKey) Status(context.Context) (map[string]madmin.ItemState, error) {
	return map[string]madmin.ItemState{
		"127.0.0.1": madmin.ItemOnline,
	}, nil
}

// ListKeys returns a list of keys with metadata. The builtin KMS consists of just a single key.
func (s secretKey) ListKeys(ctx context.Context, req *ListRequest) ([]madmin.KMSKeyInfo, string, error) {
	if strings.HasPrefix(s.keyID, req.Prefix) && strings.HasPrefix(s.keyID, req.ContinueAt) {

		} else {
			status[r.Endpoint] = madmin.ItemOffline
		}
	}
	return status, nil
}

func (c *kesConn) ListKeys(ctx context.Context, req *ListRequest) ([]madmin.KMSKeyInfo, string, error) {
	names, continueAt, err := c.client.ListKeys(ctx, req.Prefix, req.Limit)
	if err != nil {
		return nil, "", err
	}
	keyInfos := make([]madmin.KMSKeyInfo, len(names))
	for i := range names {

	if objectAPI == nil {
		return
	}

	if GlobalKMS == nil {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrKMSNotConfigured), r.URL)
		return
	}
	allKeys, _, err := GlobalKMS.ListKeys(ctx, &kms.ListRequest{
		Prefix: r.Form.Get("pattern"),
	})
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	Status(context.Context) (map[string]madmin.ItemState, error)

	// CreateKey creates a new key at the KMS with the given key ID.
	CreateKey(context.Context, *CreateKeyRequest) error

	ListKeys(context.Context, *ListRequest) ([]madmin.KMSKeyInfo, string, error)

	// GenerateKey generates a new data encryption key using the
	// key referenced by the key ID.
	//