Book Image

Flask Framework Cookbook - Third Edition

By : Shalabh Aggarwal
4.3 (4)
Book Image

Flask Framework Cookbook - Third Edition

4.3 (4)
By: Shalabh Aggarwal

Overview of this book

Discover what makes Flask, the lightweight Python web framework, popular, as you delve into its modular design that enables the development of scalable web apps. With this practical guide, you'll explore modern solutions, recommended design patterns, and best practices for Flask web development. Updated to the latest version of Flask and Python, this third edition of the Flask Framework Cookbook moves away from the outdated libraries, updates content to incorporate new coding patterns, and introduces recipes for the latest tools. You'll explore different ways to integrate with GPT to build AI-ready Flask applications. The book starts with an exploration of Flask application configurations and then guides you through working with templates and understanding the ORM and view layers. You’ll also be able to write an admin interface and get to grips with testing using the factory pattern, debugging, and logging errors. Then you’ll discover different ways of using Flask to create, deploy, and manage microservices using AWS, GCP, and Kubernetes. Finally, you’ll gain insights into various deployment and post-deployment techniques for platforms such as Apache, Tornado, and Datadog. By the end of this book, you'll have acquired the knowledge necessary to write Flask applications that cater to a wide range of use cases in the best possible way and scale them using standard industry practices.
Table of Contents (20 chapters)
1
Part 1: Flask Fundamentals
6
Part 2: Flask Deep Dive
12
Part 3: Advanced Flask

Advanced date and time formatting

Date and time formatting is a painful thing to handle in web applications. Such formatting in Python, using the datetime library, often increases overhead and is pretty complex when it comes to the correct handling of time zones. It is a best practice to standardize timestamps to UTC when they are stored in a database, but this means that the timestamp needs to be processed every time it is presented to users around the world.

Instead, it is smarter to defer this processing to the client side – that is, the browser. The browser always knows the current time zone of its user and will, therefore, be able to manipulate the date and time information correctly. This approach also reduces any unnecessary overhead from the application servers. In this recipe, we will understand how to achieve this. We will use Moment.js for this purpose.

Getting ready

Moment.js can be included in our app just like any JS library. We just have to download and...