old_contents: """
  API Builder
  Build dynamic API based on the provided SQLAlchemy model
  """
  from managers import AlchemyModelManager
  from viewsets import AlchemyModelViewSet
  from rest_framework_nested import routers
  
  
  class APIModelBuilder(object):
      def __init__(self,
                   models,
                   base_managers,
                   base_viewsets=None,
                   *args, **kwargs):
          self.models = models
  
          if not isinstance(base_managers, (tuple, list)):
              base_managers = [base_managers]
          if not isinstance(base_managers, tuple):
              base_managers = tuple(base_managers)
          if base_viewsets is None:
              base_viewsets = (AlchemyModelViewSet,)
  
          self.base_managers = base_managers
          self.base_viewsets = base_viewsets
  
      @property
      def urls(self):
          router = routers.SimpleRouter()
  
          for model in self.models:
              manager = type(
                  str('{}Manager'.format(model.__name__)),
                  self.base_managers + (AlchemyModelManager,),
                  {
                      'model_class': model,
                  }
              )
              viewset = type(
                  str('{}ModelViewSet'.format(model.__name__)),
                  self.base_viewsets,
                  {
                      'manager_class': manager,
                      'paginate_by': 10,
                  }
              )
  
              router.register('data-api/' + model.__name__.lower() + 's',
                              viewset,
                              base_name=model.__name__)
  
          return router.urls
  
new_contents: """
  API Builder
  Build dynamic API based on the provided SQLAlchemy model
  """
  from managers import AlchemyModelManager
  from viewsets import AlchemyModelViewSet
  from routers import ReadOnlyRouter
  
  
  class APIModelBuilder(object):
      def __init__(self,
                   models,
                   base_managers,
                   base_viewsets=None,
                   *args, **kwargs):
          self.models = models
  
          if not isinstance(base_managers, (tuple, list)):
              base_managers = [base_managers]
          if not isinstance(base_managers, tuple):
              base_managers = tuple(base_managers)
          if base_viewsets is None:
              base_viewsets = (AlchemyModelViewSet,)
  
          self.base_managers = base_managers
          self.base_viewsets = base_viewsets
  
      @property
      def urls(self):
          router = ReadOnlyRouter()
  
          for model in self.models:
              manager = type(
                  str('{}Manager'.format(model.__name__)),
                  self.base_managers + (AlchemyModelManager,),
                  {
                      'model_class': model,
                  }
              )
              viewset = type(
                  str('{}ModelViewSet'.format(model.__name__)),
                  self.base_viewsets,
                  {
                      'manager_class': manager,
                      'paginate_by': 10,
                  }
              )
  
              router.register('data-api/' + model.__name__.lower() + 's',
                              viewset,
                              base_name=model.__name__)
  
          return router.urls
  
subject: Change to use read-only router for data-apis