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Flask Blueprints by Joel Perras

By Joel Perras

Dive into the realm of the Flask microframework to improve an array of net applications

About This Book

  • Structure, compose, and construct strong Flask HTML-based purposes and JSON/XML-based APIs utilizing complex software layout patterns
  • Integrate third-party Flask extensions for initiatives comparable to social authentication, sending emails, and interacting with databases and cache layers
  • Build a sequence of Flask purposes of accelerating complexity

Who This e-book Is For

If you're a Python internet developer who has constructed easy Flask purposes and now desires to construct a chain of extra complicated net purposes, then this can be the booklet for you.

What you are going to Learn

  • Use the virtualenv Python package deal to successfully isolate your improvement environments
  • Convert an easy one-file Flask program right into a extra full-fledged multi-package application
  • Integrate Flask-Login for easy consumer authentication, Flask-WTF for types, and Flask-SQLAlchemy for database interactions
  • Explore URL routing and dispatching in a blueprint based application
  • Create your personal signs and eat them inside your application
  • Learn to leverage Werkzeug, the WSGI library that powers a lot of Flask
  • Implement customized exceptions for dealing with non-20x reaction codes
  • Write your individual CLI instruments for administrative and improvement projects of your Flask software utilizing Flask-Script/Click
  • Build your Flask extensions to encapsulate reusable behaviors throughout your applications
  • Integrate your software with open resource JavaScript-based graphing libraries to create easy info visualizations

In Detail

Flask is a small yet strong internet improvement framework for Python. although Flask is called a micro-framework, it's no manner missing in performance; there are lots of extensions on hand to Flask which is helping it to operate on the comparable point as different huge frameworks akin to Django and Ruby on Rails.

This ebook will show how one can enhance a sequence of internet program initiatives with the Python net micro-framework, and leverage extensions and exterior Python libraries and APIs to increase the advance of numerous greater and extra advanced net applications.

The booklet will begin by means of explaining Python's Virtualenv library and the way to create and turn among a number of digital environments. you will first construct an SQL database-backed software, that allows you to use Flask-WTF, Flask-SQLAlchemy, Jinja templates, and different equipment. subsequent you will stream directly to a timeline software, equipped utilizing techniques together with pytest-Flask, the Blinker package deal, information modelling for consumer timelines, exception dealing with, and growing and organizing CLI tools.

Moving on, you will discover the best way to enforce a photograph timeline software the place you are going to discover issues resembling writing and working celery projects, API mistakes dealing with and checking out, and Werkzeug middlewares.

Finally, the ebook walks you thru developing an software which fetches info from GitHub and shops it in the neighborhood. additionally, you will how to set up and configure Flask-Click extension.

Style and approach

This booklet covers the best way to successfully use the Flask micro-framework to boost a sequence of internet purposes. every one bankruptcy focusses at the improvement of an program expanding in complexity with effortless steps to follow.

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