JWT Authentication using Spring Boot’s inbuilt OAuth2 Resource Server

This example project demonstrates the usage of Spring Boot OAuth2 Resource Server with JWT configuration to protect a REST API with JWT based authentication.

Furthermore, provides a "/login" endpoint to generate and issue JWTs upon successful login by the users.

This approach is ideal to be used as the backend for a single page application (SPA) written using a frontend framework like ReactJS, Angular, etc...

Getting Started

• Use ./mvnw clean install in the project root directory to build the project.
• Run the main class, ro.gandesc.jwt.JwtApplication to start the application.

Endpoints

• /login -> Public endpoint which returns a signed JWT for valid user credentials (username/password)
• /users/authenticated -> A protected endpoint which returns the user details of the logged in user.

Keystore

• generation: keytool -keystore keystore.jks -genkey -alias jwtsignature -keyalg RSA
• verification: keytool -v -list -keystore keystore.jks