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Mastering Flask Web and API Development

You're reading from   Mastering Flask Web and API Development Build and deploy production-ready Flask apps seamlessly across web, APIs, and mobile platforms

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Product type Paperback
Published in Aug 2024
Publisher Packt
ISBN-13 9781837633227
Length 494 pages
Edition 1st Edition
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Author (1):
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Sherwin John C. Tragura Sherwin John C. Tragura
Author Profile Icon Sherwin John C. Tragura
Sherwin John C. Tragura
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Table of Contents (18) Chapters Close

Preface 1. Part 1:Learning the Flask 3.x Framework
2. Chapter 1: A Deep Dive into the Flask Framework FREE CHAPTER 3. Chapter 2: Adding Advanced Core Features 4. Chapter 3: Creating REST Web Services 5. Chapter 4: Utilizing Flask Extensions 6. Part 2:Building Advanced Flask 3.x Applications
7. Chapter 5: Building Asynchronous Transactions 8. Chapter 6: Developing Computational and Scientific Applications 9. Chapter 7: Using Non-Relational Data Storage 10. Chapter 8: Building Workflows with Flask 11. Chapter 9: Securing Flask Applications 12. Part 3:Testing, Deploying, and Building Enterprise-Grade Applications
13. Chapter 10: Creating Test Cases for Flask 14. Chapter 11: Deploying Flask Applications 15. Chapter 12: Integrating Flask with Other Tools and Frameworks 16. Index 17. Other Books You May Enjoy

Using asynchronous background tasks for resource-intensive computations

There are implementations of many approximation algorithms and P-complete problems that can create memory-related issues, thread problems, or even memory leaks. To avoid imminent problems when handling solutions for NP-hard problems with indefinite data sets, implement the solutions using asynchronous background tasks.

But first, install the celery client using the pip command:

pip install celery

Also, install the Redis database server for its broker. Place celery_config.py, which contains celery_init_app(), in the project directory and call the method in the main.py module.

After the setup and installations, create a service package in the Blueprint module folder. ch06-project has the following Celery task in the hpi_formula.py service module found in the internal Blueprint module:

@shared_task(ignore_result=False)
def compute_hpi_laspeyre(df_json):
    async def compute_hpi_task...
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