home_route:
  path:     /
  defaults: { controller: 'FooController::indexAction' }

foo_route:
  path:     /foo
  defaults: { controller: 'FooController::indexAction' }

foo_placeholder_route:
  path:     /foo/{id}
  defaults: { controller: 'FooController::loadAction' }
  requirements:
    id: '[0-9]+'