And Microservice Architectures - Spring Security Third Edition Secure Your Web Applications Restful Services
// Simplified from Chapter 11 JwtAuthenticationToken token = ...; Set<String> allowedScopes = getScopesForCurrentService(); Jwt trimmedJwt = JwtHelper.trimScopes(token.getToken(), allowedScopes); This way, payment-service never sees scopes like profile:write – reducing lateral movement risk if compromised. The third edition isn’t about adding more filters. It’s about understanding where authorization actually happens – at the method level, between services, and even inside SQL queries (using Spring Data’s @PostFilter sparingly, as the book warns).
Let’s explore three counterintuitive lessons from the book that will change how you think about securing modern applications. The book opens with a provocative claim: Most developers misuse stateless authentication. // Simplified from Chapter 11 JwtAuthenticationToken token =
Have you run into any of these three pitfalls in your own projects? The patterns above might just save your next security audit. Let’s explore three counterintuitive lessons from the book
Most developers think they know Spring Security. You add the dependency, configure a UserDetailsService , maybe tweak some CORS settings, and call it done. But the third edition of Spring Security by Laurentiu Spilca reveals a harsh truth: that basic setup leaves your REST APIs and microservices dangerously exposed. The patterns above might just save your next security audit
@Service public class DocumentService { public Document findById(Long id) { // No security here! return documentRepository.findById(id); } } If any other service calls findById(1) – maybe from a scheduled job, a message listener, or another microservice – the authorization check is gone.
Consider this common pattern:
