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

Understanding filtering, searching, and ordering classes


In the previous chapter, we took advantage of the pagination features available in Django REST Framework to specify how we wanted large results sets to be split into individual pages of data. However, we have always been working with the entire queryset as the result set; that is, we didn't apply any filter.

Note

Django REST Framework makes it easy to customize filtering, searching, and sorting capabilities for the views we have already coded.

Open the settings.py file in the games_service/games_service folder. Add the following highlighted lines after the first line that declares the dictionary named REST_FRAMEWORK to add the new 'DEFAULT_FILTER_BACKENDS' setting key. Don't remove the lines that will appear after the new highlighted lines. We don't show them to avoid repeating code. The code file for the sample is included in the restful_python_2_08_01 folder, in the Django01/games-service/games_service/settings.py file:

REST_FRAMEWORK...