OAuth 2.0 Implementation with Spring Security and Spring Boot | Full Example

OAuth2 is a widely used authorization framework that is supported by Spring.

The OAuth 2.0 authorization framework is a protocol that allows a user to grant a third-party website or application access to the user’s protected resources, without necessarily revealing their long-term credentials or even their identity.

We will implement Authorization Server, Resource Server, and Client as part of this Tutorial to Completely understand the OAuth2.0 Flow and implement it with Spring Security and Spring Boot.

OAuth Playground:

https://www.oauth.com/playground/

There are five key actors involved in an OAuth system, which is listed below.

User / Resource Owner : The end-user, who is responsible for the authentication and for providing consent to share resources with the client.

Authorization Server : The server that is used to authenticate the user/client. It issues access tokens and tracks them throughout their lifetime.

Resource Server : The API that provides access to the requested resource. It validates the access tokens and provides authorization.

User-Agent : The browser used by the User.

Client : The application requesting an access token.