Use JWT & Springboot-3 for API Authentication Authorization

In this course you will learn to secure REST API with Springboot-3 and JWT.

JSON Web Tokens (JWT) and Spring Boot together provide a powerful solution for securing web applications. JWT is a compact, URL-safe means of representing claims to be transferred between two parties. The token is digitally signed, allowing the receiving party to verify its authenticity. This is particularly useful in stateless authentication, where the server does not need to store session information.

In a Spring Boot application, JWT can be integrated easily for authentication and authorization purposes. When a user logs in, the server generates a JWT containing user information and permissions. This token is sent back to the client, which stores it (typically in local storage or cookies). For subsequent requests, the client includes the JWT in the HTTP headers, allowing the server to validate the token and grant access to protected resources.

To implement JWT in Spring Boot, developers can use libraries like jjwt for token creation and parsing. Spring Security can be configured to intercept requests and validate the JWT. By using filters, developers can ensure that each request is authenticated based on the token. This combination not only enhances security but also simplifies scaling, as each request is stateless, reducing server-side overhead and improving performance.

You will also get the source code for the course.