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

Updating fields for a resource with the PATCH method


Now we will compose and send an HTTP request to update an existing notification, specifically, to update the value of the displayed_once and displayed_times fields. Because we just want to update two fields, we will use the PATCH method instead of PUT. Make sure you replace 2 with the ID or primary key of an existing notification in your configuration. The code file for the sample is included in the restful_python_2_03_01 folder, in the Flask01/cmd307.txt file:

http PATCH ":5000/service/notifications/2" displayed_once=true displayed_times=1

The following is the equivalent curl command. The code file for the sample is included in the restful_python_2_03_01 folder, in the Flask01/cmd308.txt file:

curl -iX PATCH -H "Content-Type: application/json" -d '{"displayed_once":"true", "displayed_times":1}' "localhost:5000/service/notifications/2"

The previous command will compose and send a PATCH HTTP request with the following JSON key-value pairs:

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