Book Image

Micro State Management with React Hooks

By : Daishi Kato
Book Image

Micro State Management with React Hooks

By: Daishi Kato

Overview of this book

State management is one of the most complex concepts in React. Traditionally, developers have used monolithic state management solutions. Thanks to React Hooks, micro state management is something tuned for moving your application from a monolith to a microservice. This book provides a hands-on approach to the implementation of micro state management that will have you up and running and productive in no time. You’ll learn basic patterns for state management in React and understand how to overcome the challenges encountered when you need to make the state global. Later chapters will show you how slicing a state into pieces is the way to overcome limitations. Using hooks, you'll see how you can easily reuse logic and have several solutions for specific domains, such as form state and server cache state. Finally, you'll explore how to use libraries such as Zustand, Jotai, and Valtio to organize state and manage development efficiently. By the end of this React book, you'll have learned how to choose the right global state management solution for your app requirement.
Table of Contents (16 chapters)
Part 1: React Hooks and Micro State Management
Part 2: Basic Approaches to the Global State
Part 3: Library Implementations and Their Uses

Chapter 2: Using Local and Global States

React components form a tree structure. In the tree structure, creating a state in a whole subtree is straightforward; you would simply create a local state in a higher component in a tree and use the state in the component and its child components. This is good in terms of locality and reusability and is why it's generally recommended to follow this strategy.

However, in some scenarios, we have a state in two or more components that are far apart in the tree. In such cases, this is where global states come in. Unlike local states, global states do not conceptually belong to a specific component, and so where we store a global state is an important point to consider.

In this chapter, we will learn about local states, including some lifting-up patterns that may be worth considering. Lifting up is a technique to put information higher in the component tree. Then, we will dive into global states and consider when to use them.