Building RESTful Python Web Services

Adding pagination features

Open the api/views.py file and replace the code for the MessageListResource.get method with the highlighted lines in the next listing. In addition, make sure that you add the import statement. The code file for the sample is included in the restful_python_chapter_07_01 folder:

from helpers import PaginationHelper 
 
 
class MessageListResource(Resource): 
    def get(self): 
        pagination_helper = PaginationHelper( 
            request, 
            query=Message.query, 
            resource_for_url='api.messagelistresource', 
            key_name='results', 
            schema=message_schema) 
        result = pagination_helper.paginate_query() 
        return result

The new code for the get method creates an instance of the previously explained PaginationHelper class named pagination_helper with the request object ...