Code Mill Hub | Backend Engineering https://code-mill-hub.com/blog/ Deep dives into Java, Spring Boot, and high-performance backend architecture. en-us shflzp12@gmail.com (Maria) shflzp12@gmail.com (Maria) Sun, 12 Jul 2026 00:00:00 GMT https://code-mill-hub.com/blog/spring-boot/2026-07-12-mastering-backend-for-frontend-bff-pattern-spring-boot-java-virtual-threads/ Backend for Frontend with Spring Boot 4: Parallel Aggregation on Java 25 Virtual Threads https://code-mill-hub.com/blog/spring-boot/2026-07-12-mastering-backend-for-frontend-bff-pattern-spring-boot-java-virtual-threads/ Build a client-specific BFF with Spring Boot 4, RestClient, and Java 25 virtual threads, including real parallel aggregation, timeouts, partial responses, and safe token propagation. Sun, 12 Jul 2026 00:00:00 GMT shflzp12@gmail.com (Maria) Backend For FrontendSpring BootJavaVirtual ThreadsMicroservicesAPI Design