Relevant articles

• Spring Security and OpenID Connect

OpenID Connect with Spring Security

Run the Project

mvn spring-boot:run

Obtain Google App - Client ID, Secret

• You need to get client id and client secret by creating a new project at Google Developer Console

• Make sure to add OAuth2 credentials by selecting Add credentials > OAuth 2.0 client ID

• Make sure you set redirect URI to http://localhost:8081/google-login

• Once you have your client id and secret, make sure you add them to the application.properties of the project