Book Image

Django RESTful Web Services

By : Gaston C. Hillar
Book Image

Django RESTful Web Services

By: Gaston C. Hillar

Overview of this book

Django is a Python web framework that makes the web development process very easy. It reduces the amount of trivial code, which simplifies the creation of web applications and results in faster development. It is very powerful and a great choice for creating RESTful web services. If you are a Python developer and want to efficiently create RESTful web services with Django for your apps, then this is the right book for you. The book starts off by showing you how to install and configure the environment, required software, and tools to create RESTful web services with Django and the Django REST framework. We then move on to working with advanced serialization and migrations to interact with SQLite and non-SQL data sources. We will use the features included in the Django REST framework to improve our simple web service. Further, we will create API views to process diverse HTTP requests on objects, go through relationships and hyperlinked API management, and then discover the necessary steps to include security and permissions related to data models and APIs. We will also apply throttling rules and run tests to check that versioning works as expected. Next we will run automated tests to improve code coverage. By the end of the book, you will be able to build RESTful web services with Django.
Table of Contents (16 chapters)
Title Page
About the Author

Working with object-level permissions via customized permission classes

The rest_framework.permissions.BasePermission class is the base class from which all customized permission classes should inherit to work with the Django REST framework. We want to make sure that only a drone owner can update or delete an existing drone.

Go to the restful01/drones folder and create a new file named Write the following code in this new file. The following lines show the code for this file that declares the new IsCurrentUserOwnerOrReadOnly class declared as a subclass of the BasePermission class. The code file for the sample is included in the hillar_django_restful_08_01 folder in the restful01/drones/ file:

from rest_framework import permissions 
class IsCurrentUserOwnerOrReadOnly(permissions.BasePermission): 
    def has_object_permission(self, request, view, obj): 
        if request.method in permissions.SAFE_METHODS: 
            # The method is a safe method...