Book Image

Real-World Next.js

By : Michele Riva
Book Image

Real-World Next.js

By: Michele Riva

Overview of this book

Next.js is a scalable and high-performance React.js framework for modern web development and provides a large set of features, such as hybrid rendering, route prefetching, automatic image optimization, and internationalization, out of the box. If you are looking to create a blog, an e-commerce website, or a simple website, this book will show you how you can use the multipurpose Next.js framework to create an impressive user experience. Starting with the basics of Next.js, the book demonstrates how the framework can help you reach your development goals. You'll realize how versatile Next.js is as you build real-world applications with step-by-step explanations. This Next.js book will guide you in choosing the right rendering methodology for your website, securing it, and deploying it to different providers, all while focusing on performance and developer happiness. By the end of the book, you'll be able to design, build, and deploy modern architectures using Next.js with any headless CMS or data source.
Table of Contents (19 chapters)
Part 1: Introduction to Next.js
Part 2: Hands-On Next.js
Part 3: Next.js by Example

Understanding JSON web tokens

As written on the website, a JWT (short for JSON Web Token) is an open, industry-standard RFC 7519 method for representing claims securely between two parties.

To keep it simple, we can think of JWTs as three distinct base64-encoded JSON chunks of data.

Let's take the following JWT as an example:


If we pay enough attention, we can see three different chunks of data separated by periods.

The first part represents the JWT header. It contains two essential pieces of information: the token type and the algorithm used for signing it (we will talk more about that in just a second).

The second part is the payload. Here is where we put all the non-sensitive data that can help us identify our users. Never store data such as passwords and...