Book Image

Full-Stack Flask and React

By : Adedeji
3.5 (2)
Book Image

Full-Stack Flask and React

3.5 (2)
By: Adedeji

Overview of this book

Developing an interactive, efficient, and fast enterprise web application requires both the right approach and tooling. If you are a web developer looking for a way to tap the power of React’s reusable UI components and the simplicity of Flask for backend development to develop production-ready, scalable web apps in Python, then this book is for you. Starting with an introduction to React, a JavaScript library for building highly interactive and reusable user interfaces, you’ll progress to data modeling for the web using SQLAlchemy and PostgreSQL, and then get to grips with Restful API development. This book will aid you in identifying your app users and managing access to your web application. You’ll also explore modular architectural design for Flask-based web applications and master error-handling techniques. Before you deploy your web app on AWS, this book will show you how to integrate unit testing best practices to ensure code reliability and functionality, making your apps not only efficient and fast but also robust and dependable. By the end of this book, you’ll have acquired deep knowledge of the Flask and React technology stacks, which will help you undertake web application development with confidence.
Table of Contents (21 chapters)
1
Part 1 – Frontend Development with React
9
Part 2 – Backend Development with Flask

Using useContext to manage global state in React applications

The useContext Hook is used to share application state data across the component tree without having to pass props down explicitly at every component level. To put it simply, useContext is a way to manage React applications’ global state. Remember, we used the useState Hook to manage local state in the Using useState to develop stateful components section.

However, as React project requirements expand in scope, it will be ineffective to use the useState Hook alone in passing state data in deeply nested components. The following is the syntax for the useContext Hook:

const Context = useContext(initialValue);

Briefly, we will discuss props drilling to understand the challenges it poses. Afterward, we’ll delve into the implementation of the context API, which addresses these issues.

Understanding props drilling

Let’s examine how you might pass data as props down a component hierarchy without...