Use Jwt & Springboot–3 For Api Authentication Authorization

What you'll learn
You will about Authentication & Authorization
You will learn about JWT - Json Web Token and its working
You will learn to implement Springboot 3.3.5 with JWT
You will learn to secure your REST API using Springboot 3 & JWT
You will learn to develop applications with multiple roles
You will also get the source code for the course.
Requirements
Basics of Java & Springboot
Description
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.
Overview
Section 1: Setup and Configuration
Lecture 1 Generating the starter springboot 3.3.5 project
Lecture 2 Adding JWT dependencies
Lecture 3 Adding Different User Roles
Lecture 4 Creating Role Entity
Lecture 5 Creating User Entity
Lecture 6 Adding profile based application properties files
Lecture 7 Adding H2 file based Database configuration
Section 2: Working on Repository and Services
Lecture 8 Creating Role Repository with required custom queries
Lecture 9 Creating User Repository with required custom queries
Lecture 10 Adding logic for UserDetailsImpl class for mapping the User Entity and Role
Lecture 11 Adding logic for UserServiceImpl to load user and save user
Lecture 12 Service for generating validating token and extracting claims
Section 3: Working on Filter and Configuration
Lecture 13 Implementing JWT Authentication Filter
Lecture 14 Implementing and understanding Security Config bean
Lecture 15 Exception handling for all security errors
Lecture 16 Understanding Security Filter Chain configuration.mp4
Lecture 17 Handling Cors Configuration in the application
Section 4: Login and Signup Functionality
Lecture 18 Creating Signup Request DTO
Lecture 19 Creating LoginRequest and Response DTO and Message DTO
Lecture 20 Implementing Signup and Registration functionality in Auth Controller
Lecture 21 Understanding Auth Controller
Lecture 22 Startup command to insert roles into database
Lecture 23 Solving circular dependency
Section 5: Testing the application
Lecture 24 Testing the application
Lecture 25 Updating Security Config rules and testing again
Lecture 26 Implement Test Controller to test Authentication and Authorization
Lecture 27 Testing different roles with API endpoints security
Lecture 28 Get LoggedIn user information
Anyone who wants to implement JWT based Authentication and Authorization with Springboot 3.3.5 and Spring security
Homepage

https://www.udemy.com/course/use-jwt-springboot-3-for-api-authentication-authorization/

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