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OAuth 2.0

Architectural illustration of a browser, an identity gateway and a protected application connected by an authorization-code path.
Java

Spring Boot and Keycloak OIDC for Beginners: Login, Secure APIs, and Understand Every Step

Adding a login button to a Spring application is easy. Understanding what happens after someone clicks it takes a little more work. Who checks the password? Why are there several tokens? Why can a logged-in user still receive a 403? And why does an API need different security settings from Read more

By Enrico Homann, 51 minutes ago October 28, 2026
Recent Posts
  • Spring Boot and Keycloak OIDC for Beginners: Login, Secure APIs, and Understand Every Step October 28, 2026
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