Book Image

React and React Native - Fourth Edition

By : Adam Boduch, Roy Derks, Mikhail Sakhniuk
Book Image

React and React Native - Fourth Edition

By: Adam Boduch, Roy Derks, Mikhail Sakhniuk

Overview of this book

Over the years, React and React Native has proven itself among JavaScript developers as a popular choice for a complete and practical guide to the React ecosystem. This fourth edition comes with the latest features, enhancements, and fixes to align with React 18, while also being compatible with React Native. It includes new chapters covering critical features and concepts in modern cross-platform app development with React. From the basics of React to popular components such as Hooks, GraphQL, and NativeBase, this definitive guide will help you become a professional React developer in a step-by-step manner. You'll begin by learning about the essential building blocks of React components. As you advance through the chapters, you'll work with higher-level functionalities in application development and then put your knowledge to work by developing user interface components for the web and native platforms. In the concluding chapters, you'll learn how to bring your application together with robust data architecture. By the end of this book, you'll be able to build React applications for the web and React Native applications for multiple mobile platforms.
Table of Contents (36 chapters)
1
Part 1 – React
15
Part 2 – React Native
31
Part 3 – React Architecture

Chapter 30: Why GraphQL?

In the preceding chapter, you learned about the architectural principles of state management in React. In particular, you used Context to implement more complex state management in a React application. Context, in combination with reducer functions, will help you to understand how state changes and flows in your application are a good thing. At the end of the preceding chapter, you also learned about the potential limitations in terms of scale.

In this chapter, we are going to walk you through yet another approach to handling state in a React application. Similar to Context, GraphQL can be used with both web and mobile React applications. GraphQL is a query language for APIs and is implemented on the server side. To connect with GraphQL from a React application, we'll be using the library called Apollo Client.

Unlike Context, you don't have to write reducers and actions to deal with state management. Instead, GraphQL provides a more declarative...