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Django 5 By Example

Django 5 By Example

By : Antonio Melé
4.6 (40)
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Django 5 By Example

Django 5 By Example

4.6 (40)
By: Antonio Melé

Overview of this book

If you want to learn Django by doing, this book is for you. Django 5 By Example is the fifth edition of the best-selling franchise that helps you build real-world web apps. This book will walk you through planning and creation, solving common problems, and implementing best practices using a step-by-step approach. You’ll cover a wide range of web application development topics through four different projects: a blog application, a social website, an e-commerce application, and an e-learning platform. Pick up what’s new in Django 5 as you build end-to-end Python web apps, follow detailed project plans, and understand the hows and whys of Django. This is a practical and approachable book that will have you creating web apps quickly.
Table of Contents (20 chapters)
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18
Other Books You May Enjoy
19
Index

Enabling a channel layer

Channel layers allow you to communicate between different instances of an application. A channel layer is the transport mechanism that allows multiple consumer instances to communicate with each other and with other parts of Django.

In your chat server, you plan to have multiple instances of the ChatConsumer consumer for the same course chat room. Each student who joins the chat room will instantiate the WebSocket client in their browser, and that will open a connection with an instance of the WebSocket consumer. You need a common channel layer to distribute messages between consumers.

Channels and groups

Channel layers provide two abstractions to manage communications: channels and groups:

  • Channel: You can think of a channel as an inbox where messages can be sent or as a task queue. Each channel has a name. Messages are sent to a channel by anyone who knows the channel name and then given to consumers listening on that channel.
  • ...

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