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Django 2 by Example

You're reading from   Django 2 by Example Build powerful and reliable Python web applications from scratch

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Product type Paperback
Published in May 2018
Publisher Packt
ISBN-13 9781788472487
Length 526 pages
Edition 1st Edition
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Author (1):
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Antonio Melé Antonio Melé
Author Profile Icon Antonio Melé
Antonio Melé
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Table of Contents (15) Chapters Close

Preface 1. Building a Blog Application FREE CHAPTER 2. Enhancing Your Blog with Advanced Features 3. Extending Your Blog Application 4. Building a Social Website 5. Sharing Content in Your Website 6. Tracking User Actions 7. Building an Online Shop 8. Managing Payments and Orders 9. Extending Your Shop 10. Building an E-Learning Platform 11. Rendering and Caching Content 12. Building an API 13. Going Live 14. Other Books You May Enjoy

Launching asynchronous tasks with Celery

Everything you execute in a view affects response times. In many situations, you might want to return a response to the user as quickly as possible and let the server execute some process asynchronously. This is especially relevant for time-consuming processes or processes subject to failure, which might need a retry policy. For example, a video sharing platform allows users to upload videos but requires a long time to transcode uploaded videos. The site might return a response to users to inform them that the transcoding will start soon, and start transcoding the video asynchronously. Another example is sending emails to users. If your site sends email notifications from a view, the SMTP connection might fail or slow down the response. Launching asynchronous tasks is essential to avoid blocking the code execution.

Celery is a distributed...

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