Notifications parameters and delete members

handlers/groups.go

@@ -81,6 +81,13 @@ func (h GroupsManagementHandler) Unsubscribe(groupid string, subscriber string)
 	return nil
 }
 
+func (h GroupsManagementHandler) UpdateGroup(group storage.Group) (*storage.Group, error) {
+	if err := h.storage.UpdateGroup(group); err != nil {
+		return nil, err
+	}
+	return &group, nil
+}
+
 func (h GroupsManagementHandler) DeleteGroup(id string) error {
 	return h.storage.DeleteGroup(id)
 }