Name: Building Web Apps with Python and Flask
Price: 19.95 USD
ISBN: 9789389898835

BPB Online LLP

Malhar Lathkar

Building Web Apps with Python and Flask

US$ 19.95

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Description

Contents

Reviews

A practical guide for the rapid web application development with Flask

Key Features
Expert-led coverage of core capabilities of Flask, key extensions and its implementation.
Explore the Werkzeug toolkit and Jinja Template engine and see how Flask interacts with JavaScript and CSS.
Detailed modules on building and deploying RESTful applications using Flask.

Description
This book teaches the reader the complete workflow of developing web applications using Python and its most outperforming microframework, Flask.
The book begins with getting you up to speed in developing a strong understanding of the web application development process and how Python is used in developing the applications. You will learn how to write your own first Flask-based web application in Python. You will learn about web gateway interfaces, including CGI and WSGI along with various tools like the Jinja 2 engine, Werkzeug toolkit, and Click toolkit.
You will learn and practice the core features of Flask such as URL routing, rendering, handling static assets of a web application, how to handle cookies and sessions, and other HTTP objects. Once you have developed a strong knowledge of Flask, you will now dive deeper into advanced topics that includes Flask extensions for working with relational and NOSQL databases, Flask_WTF, and Flask-Bootstrap. You will explore design patterns, various blueprints on how to build modular and scalable applications, and finally how to deploy the RESTful APIs successfully on your own.

What you will learn
Get to know everything about the core capabilities of Flask.
Understand the basic building blocks of Flask.
Get familiar with advanced features of Flask, including blueprints, Flask extensions, and database connectivity.
Get ready to design your own Flask-based web applications and RESTful APIs.
Learn to build modular and scalable applications and how to deploy them successfully.

Who this book is for
This book is ideal for Python enthusiasts, open source contributors, and web app developers who intend to add Python web technologies in their skillsets and startup companies. The understanding of the core Python language with intermediate level expertise is required and experience of working with SQL, HTML, CSS, and JavaScript is an added advantage.

Table of Contents
1. Python for CGI
2. WSGI
3. Flask Fundamentals
4. URL Routing
5. Rendering Templates
6. Static Files
7. HTTP Objects
8. Using Databases
9. More Flask Extensions
10. Blueprints and Contexts
11. Web API with Flask
12. Deploying Flask Applications
13. Appendix

About the Author
Malhar Lathkar is an independent software professional, corporate trainer, freelance technical writer, and Subject Matter Expert with an experience of more than three decades. He has trained hundreds of students/professionals in Python, Data Science, Java and Android, PHP and web development, etc.
He also has the experience of delivering talks and conducting workshops on various IT topics.He writes regularly in a local newspaper on sports and technology-related current topics.

LinkedIn Profile: https://www.linkedin.com/in/malharlathkar

Language

English

ISBN

9789389898835

Cover Page

Title Page

Dedication Page

About the Author

About the Reviewer

Acknowledgement

Preface

Errata

Table of Contents

1. Python for CGI

Introduction

Structure

Objectives

Advent of WWW

What is CGI?

Configuration of Apache Server

The Basics of HTTP Protocol

Request Methods

The cgi Module

Alternatives to CGI

Conclusion

2. WSGI

Introduction

Structure

Objectives

PEP 333

The environ Dictionary object

WSGI Environment Variables

The wsgiref Package

Validator

HTML Form in a WSGI application

URL Routing

Web Frameworks

Flask

Conclusion

3. Flask Fundamentals

Introduction

Structure

Objectives

Werkzeug

Jinja2 Template Engine

Click

Installing Flask

Hello Flask Application

Debug Mode

Conclusion

4. URL Routing

Introduction

Structure

Objectives

Flask Script

Application object

Route Decorator

The add_url_rule() method

The url_for() Function

The redirect() Function

Variable Parts in URL

Conclusion

5. Rendering Templates

Introduction

Structure

Objectives

HTML Tags

Flask application structure

The render_template() Function

Conditional Statements

Loops in Template

Macros

Filters

Template Inheritance

Conclusion

6. Static Files

Introduction

Structure

Objectives

Document Object Model

JavaScript and DOM

JavaScript in Flask

CSS and DOM

Inline Definition

Style Definitions in the <head> element

External CSS File

CSS and Flask

Images in Flask App

Conclusion

7. HTTP Objects

Introduction

Structure

Objectives

Request Object

GET Method

POST Method

Response Object

Managing Sessions

Message Flashing

Uploading a File

Conclusion

8. Using Databases

Introduction

Structure

Objectives

DB-API

CREATE TABLE

INSERT DATA

READ DATA

Object Relation Model

SQLAlchemy

Flask extensions

Flask-SQLAlchemy

Relationship

NoSQL Databases

Flask-PyMongo

Flask-MongoEngine

Conclusion

9. More Flask Extensions

Introduction

Structure

Objectives

Flask-WTF

Fields

Validators

Form Class

Rendering the WTForm Object

Flask-Login

Flask-Bootstrap

Other Useful Extensions

Flask-Admin

Flask-Mail

Flask-Uploads

Conclusion

10. Blueprints and Contexts

Introduction

Structure

Objectives

Application Package

Application Context

Request context

Request Callbacks

Application Factory

Signals

Blueprints

Conclusion

11. Web API with Flask

Introduction

Structure

Objective

What is API?

REST

Route-based REST API

What is cURL?

Class-based Views

Flask-RESTful

Postman App

Conclusion

12. Deploying Flask App

Introduction

Structure

Objectives

Google App Engine

Heroku

PythonAnywhere

mod_wsgi

uWSGI

Flask App as CGI

Other options

Conclusion

Appendix: Python QuickStart

Get Started

Data Types

Indexing and Slicing

Conditionals

while loop

for loop

Functions

Class and Object

Inheritance

Overriding

Script Mode

Index

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