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

Composing requests with the necessary authentication


Now we will compose and send an HTTP request to retrieve the first page of the notifications without authentication credentials. The code file for the sample is included in the restful_python_2_03_01 folder, in the Flask01/cmd317.txt file:

http GET ":5000/service/notifications/?page=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/cmd318.txt file:

curl -iX GET "localhost:5000/service/notifications/?page=1"

We will receive a 401 Unauthorized status code in the response header. The following lines show a sample response:

HTTP/1.0 401 UNAUTHORIZEDContent-Length: 19Content-Type: text/html; charset=utf-8Date: Sat, 20 Oct 2018 00:30:56 GMTServer: Werkzeug/0.14.1 Python/3.7.1WWW-Authenticate: Basic realm="Authentication Required"Unauthorized Access

If we want to retrieve notification, that is, to make a GET request to /service/notifications/, we need to...