Xiaolin Talks Programming

Sep 15, 2026 · Backend Development

Building an Enterprise OAuth2 Authorization Server with Spring Boot and Spring Authorization Server: Complete Guide

This guide walks through building a production-ready OAuth2/OIDC authorization server using Spring Boot 3.x and Spring Authorization Server 1.3, covering client registration, authorization code flow with PKCE, custom JWT claims, RSA key rotation, MFA integration, and deployment best practices.