Migrating from a Monolith to Microservices with Spring Boot
Introduction Many teams start with a monolithic application because it’s simple and fast to build. However, as features grow and...
Testing Spring Boot Apps Using Testcontainers
Introduction Testing real application behavior is difficult when relying on mocks or in-memory databases. Although unit tests are useful, they...
Service Discovery with Spring Cloud Eureka
Introduction As microservices grow in number, keeping track of service locations becomes a real challenge. Hardcoding URLs is fragile, especially...
Integrating Redis Cache into Spring Applications
Introduction Caching is one of the most effective ways to speed up applications. Instead of hitting the database for every...
GraphQL APIs with Spring Boot and Netflix DGS
Introduction REST has been the default API style for many years, but modern applications often need more flexibility. Instead of...
Implementing CQRS and Event Sourcing in Spring Boot
Introduction As applications grow, a single unified data model can become a bottleneck. Read operations often require different data shapes...
Securing Spring Boot Apps with OAuth2 and Keycloak
Introduction Modern applications require strong authentication and authorization. Instead of managing passwords and user sessions manually, developers increasingly rely on...
API Routing with Spring Cloud Gateway
Introduction When building microservices, routing requests correctly is one of the most important pieces of the architecture. Instead of calling...
Building Reactive APIs with Spring WebFlux
Introduction As applications scale, traditional thread-per-request servers struggle under heavy load. This is especially true for I/O-heavy systems, API aggregators,...