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

Creating class-based views and using generic classes


This time, we will write our API views by declaring class-based views, instead of function-based views. We might code classes that inherit from the rest_framework.views.APIView class and declare methods with the same names than the HTTP verbs we want to process: get, post, put, patch, delete, and so on. These methods receive a request argument as happened with the functions that we created for the views. However, this approach would require us to write a lot of code. Instead, we can take advantage of a set of generic views that we can use as our base classes for our class-based views to reduce the required code to the minimum and take advantage of the behavior that has been generalized in Django REST Framework.

 

 

We will create subclasses of the two following generic class views declared in the rest_framework.generics module:

  • ListCreateAPIView: Implements the get method, which retrieves a listing of a queryset, and the post method, which...