Book Image

Hands-On RESTful Python Web Services - Second Edition

By : Gaston C. Hillar
1 (1)
Book Image

Hands-On RESTful Python Web Services - Second Edition

1 (1)
By: Gaston C. Hillar

Overview of this book

Python is the language of choice for millions of developers worldwide that builds great web services in RESTful architecture. This second edition of Hands-On RESTful Python Web Services will cover the best tools you can use to build engaging web services. This book shows you how to develop RESTful APIs using the most popular Python frameworks and all the necessary stacks with Python, combined with related libraries and tools. You’ll learn to incorporate all new features of Python 3.7, Flask 1.0.2, Django 2.1, Tornado 5.1, and also a new framework, Pyramid. As you advance through the chapters, you will get to grips with each of these frameworks to build various web services, and be shown use cases and best practices covering when to use a particular framework. You’ll then successfully develop RESTful APIs with all frameworks and understand how each framework processes HTTP requests and routes URLs. You’ll also discover best practices for validation, serialization, and deserialization. In the concluding chapters, you will take advantage of specific features available in certain frameworks such as integrated ORMs, built-in authorization and authentication, and work with asynchronous code. At the end of each framework, you will write tests for RESTful APIs and improve code coverage. By the end of the book, you will have gained a deep understanding of the stacks needed to build RESTful web services.
Table of Contents (19 chapters)
Title Page
Dedication
About Packt
Contributors
Preface
Index

Chapter 7. Improving Our API and Adding Authentication to it with Django

In this chapter, we will improve the Django RESTful API with a PostgreSQL 10.5 database that we started in the previous chapter. We will use many of the features included in Django REST framework to add new functions to the API and will add authentication-related security to it. We will do the following:

  • Add unique constraints to the models
  • Update a single field for a resource with the PATCH method
  • Take advantage of pagination
  • Customize pagination classes
  • Understand authentication, permissions, and throttling
  • Add security-related data to the models
  • Create a customized permission class for object-level permissions
  • Persist the user that makes a request and configure permission policies
  • Set a default value for a new required field in migrations
  • Compose requests with the necessary authentication
  • Browse the API with authentication credentials