Learn how to use AzureAD with Spring Security to authenticate users, including the required configuration steps for a demo application.

A practical guide to debugging Spring method annotations using Lightrun.

Learn how to use Feign to make POST API requests with form-url-encoded data in the request body.

Learn what is the best way to use the amazing SQL NOWAIT feature that allows us to avoid blocking when acquiring a row-level lock.

In this post, I show how we will be building a scalable NestJS API with AWS lambda. You will learn about NestJS as well AWS Lambda.

This article will learn you how to build microservices with Spring Boot 3 and the Spring Cloud components like Eureka or Spring Cloud Config.

Learn how Spring Data query methods are built, when you should use them, and especially when you should avoid them.

String Interpolation in Java. Finally. And some profiler limitations.

Discover API-First Development using Spring Boot and Open API Specification 3.0.

Explore options for testing Spring OAuth2 access control rules with mocked identities.

In this post, I talk about transaction outbox pattern for microservice architecture. There are number of patterns and Outbox is one of them.

This article will teach you how to use the Secrets Store CSI Driver to integrate your app with HashiCorp Vault on Kubernetes.

Learn different ways of setting up a URL using Spring Cloud FeignClient.

Java is evolving and growing up. We're getting close to Java 20 :)

Explore various approaches to setting Redis TTL via Spring Data Redis.

Learn how to change the Swagger-UI URL prefix when using Springfox and how to set up the REST API documentation using OpenAPI 3.0 with redirections.

Learn the best way to mix a child collection JOIN FETCH with parent entity records using pagination in a Spring Data JPA application.

Learn the best way to use the Spring Data JPA Specification when combining multiple predicates with the result set ordering logic.

Java 20 is out! Nuff said :)

AWS has released a library to help convert a Spring Boot application into an AWS Lambda. We look at how to use this library and how to deal with long cold start times.