date-poll-api/config/packages/fos_rest.yaml

# Read the documentation: https://symfony.com/doc/master/bundles/FOSRestBundle/index.html
fos_rest:
  #    param_fetcher_listener:  true
  #    allowed_methods_listener:  true
  #    routing_loader: true
  #  view:
  #    view_response_listener:  true
  #    exception:
  #        codes:
  #            App\Exception\MyException: 403
  #        messages:
  #            App\Exception\MyException: Forbidden area.
  routing_loader:
    default_format: json
  format_listener:
    rules:
      - { path: '^/',
          prefer_extension: true,
          fallback_format: json,
          priorities: [ json, html ] }