Book Image

Building RESTful Python Web Services

By : Gaston C. Hillar
Book Image

Building RESTful Python Web Services

By: Gaston C. Hillar

Overview of this book

Python is the language of choice for millions of developers worldwide, due to its gentle learning curve as well as its vast applications in day-to-day programming. It serves the purpose of building great web services in the RESTful architecture. This book will show you the best tools you can use to build your own web services. Learn how to develop RESTful APIs using the popular Python frameworks and all the necessary stacks with Python, Django, Flask, and Tornado, combined with related libraries and tools. We will dive deep into each of these frameworks to build various web services, and will provide use cases and best practices on when to use a particular framework to get the best results. We will show you everything required to successfully develop RESTful APIs with the four frameworks such as request handling, URL mapping, serialization, validation, authentication, authorization, versioning, ORMs, databases, custom code for models and views, and asynchronous callbacks. At the end of each framework, we will add authentication and security to the RESTful APIs and prepare tests for it. By the end of the book, you will have a deep understanding of the stacks needed to build RESTful web services.
Table of Contents (18 chapters)
Building RESTful Python Web Services
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Preface

Creating resource classes to handle users


We just want to be able to create users and use them to authenticate requests. Thus, we will just focus on creating resource classes with just a few methods. We won't create a complete user management system.

We will create the resource classes that represent the user and the collection of users. First, we will create a UserResource class that we will use to represent a user resource. Open the api/views.py file and add the following lines after the line that creates the Api instance. The code file for the sample is included in the restful_python_chapter_07_02 folder:

class UserResource(AuthRequiredResource): 
    def get(self, id): 
        user = User.query.get_or_404(id) 
        result = user_schema.dump(user).data 
        return result 

The UserResource class is a subclass of the previously coded AuthRequiredResource and declares a get methods that will be called when the HTTP method with the same name arrives as a request on the represented resource...