Book Image

Building SPAs with Django and HTML Over the Wire

By : Andros Fenollosa
4.5 (2)
Book Image

Building SPAs with Django and HTML Over the Wire

4.5 (2)
By: Andros Fenollosa

Overview of this book

The HTML over WebSockets approach simplifies single-page application (SPA) development and lets you bypass learning a JavaScript rendering framework such as React, Vue, or Angular, moving the logic to Python. This web application development book provides you with all the Django tools you need to simplify your developments with real-time results. You’ll learn state-of-the-art WebSocket techniques to realize real-time applications with minimal reliance on JavaScript. This book will also show you how to create a project with Docker from the ground up, test it, and deploy it on a server. You’ll learn how to create a project, add Docker, and discover development libraries, Django channels, and bidirectional communication, and from then, on you’ll create real projects of all kinds using HTML over WebSockets as a chat app or a blog with real-time comments. In addition, you’ll modernize your development techniques by moving from using an SSR model to creating web pages using WebSockets over HTML. With Django, you’ll be able to create SPAs with professional real-time projects where the logic is in Python. By the end of this Django book, you’ll be able to build real-time applications, as well as gaining a solid understanding of WebSockets with Django.
Table of Contents (14 chapters)
1
Part 1: Getting Started with Python
4
Part 2: WebSockets in Django
8
Part 3: HTML over WebSockets
11
Part 4: Simplifying the frontend with Stimulus

Hydrating sections or components

Although we have a function that can dynamically include HTML rendered from a template and apply it to a tag present in the document, we cannot decide whether we want to replace or insert HTML, in other words, hydrate or replace the DOM.

Hydration is a technique in web development where client-side JavaScript converts a static HTML web page into a dynamic web page by attaching event handlers to the HTML elements. This allows for a fast First Contentful Paint (FCP) but there is a period of time afterward where the page appears to be fully loaded and interactive. However, it is not until the client-side JavaScript is executed and event handlers have been attached.

To solve this problem, we will start by remembering that the Consumer class is prepared to receive the append instruction:

    def send_html(self, event):
        """Event: Send html to client""&quot...