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React Key Concepts

You're reading from  React Key Concepts

Product type Book
Published in Dec 2022
Publisher Packt
ISBN-13 9781803234502
Pages 590 pages
Edition 1st Edition
Languages
Author (1):
Maximilian Schwarzmüller Maximilian Schwarzmüller
Profile icon Maximilian Schwarzmüller

Table of Contents (16) Chapters

Preface
1. React – What and Why 2. Understanding React Components and JSX 3. Components and Props 4. Working with Events and State 5. Rendering Lists and Conditional Content 6. Styling React Apps 7. Portals and Refs 8. Handling Side Effects 9. Behind the Scenes of React and Optimization Opportunities 10. Working with Complex State 11. Building Custom React Hooks 12. Multipage Apps with React Router 13. Managing Data with React Router 14. Next Steps and Further Resources Appendix

Data Fetching and Routing Are Tightly Coupled

As mentioned previously, most websites do need to fetch (or send) data and most websites do need more than one page. But it's important to realize that these two concepts are typically closely related.

Whenever a user visits a new page (such as /posts), it's likely that some data will need to be fetched. In the case of a /posts page, the required data is probably a list of blog posts that is retrieved from a backend server. The rendered React component (such as Posts) must therefore send an HTTP request to the backend server, wait for the response, handle the response (as well as potential errors) and, ultimately, display the fetched data.

Of course, not all pages need to fetch data. Landing pages, "About Us" pages, or "Terms & Use" pages probably don't need to fetch data when a user visits them. Instead, data on those pages is likely to be static. It might even be included in the source code...

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