Book Image

Cloud Native Python

By : Manish Sethi
Book Image

Cloud Native Python

By: Manish Sethi

Overview of this book

Businesses today are evolving so rapidly that having their own infrastructure to support their expansion is not feasible. As a result, they have been resorting to the elasticity of the cloud to provide a platform to build and deploy their highly scalable applications. This book will be the one stop for you to learn all about building cloud-native architectures in Python. It will begin by introducing you to cloud-native architecture and will help break it down for you. Then you’ll learn how to build microservices in Python using REST APIs in an event driven approach and you will build the web layer. Next, you’ll learn about Interacting data services and building Web views with React, after which we will take a detailed look at application security and performance. Then, you’ll also learn how to Dockerize your services. And finally, you’ll learn how to deploy the application on the AWS and Azure platforms. We will end the book by discussing some concepts and techniques around troubleshooting problems that might occur with your applications after you’ve deployed them. This book will teach you how to craft applications that are built as small standard units, using all the proven best practices and avoiding the usual traps. It's a practical book: we're going to build everything using Python 3 and its amazing tooling ecosystem. The book will take you on a journey, the destination of which, is the creation of a complete Python application based on microservices over the cloud platform
Table of Contents (14 chapters)
Creating UIs to Scale with Flux

Session management

Sessions are a sequence of request and response transactions associated with a single user. The sessions are usually maintained on the server level by authenticating the user and keeping track of his/her activity over the web page.

Session with each client is assigned a session ID. Sessions are generally stored on top of cookies and the server signs them cryptographically--they are decrypted by the Flask application using the secret key for a temporary duration.

Currently, we haven't set up authentication--we will be defining it in Chapter 8, Securing the Web Application. So, at this point in time, we will create the session by asking about the username accessing the web page and making sure that the user is identified using the sessions.

Now let's create a web page, say, main.html, which will have a URL to create the session if it is needed to be...