def setup_admin_on_rest_handlers(admin, admin_handler):
    """
    Initialize routes.
    """
    add_route = admin.router.add_route
    add_static = admin.router.add_static
    static_folder = str(PROJ_ROOT / 'static')
    a = admin_handler

    add_route('GET', '', a.index_page, name='admin.index')
    add_route('POST', '/token', a.token, name='admin.token')
    add_static('/static', path=static_folder, name='admin.static')
    add_route('DELETE', '/logout', a.logout, name='admin.logout')
Initialize routes.