This code example demonstrates the use of MapStruct when we need to convert basic objects into DTOs. We start by adding the MapStruct dependencies to a Spring project. Here we use a new project, but the procedure is the same for mature projects as well. pom.xml <dependencies> <dependency>…

The journey in the Elrond network starts with Maiar App and Wallet that can be used to deposit Fiat and buy eGLD tokens. You can also use Maiar to stake eGLD and earn fine yields ~15% APR. Recently the new Maiar Exchange was launched, bringing new earnings possibilities to the…

The CISA Director, Jen Easterly, says that the Log4J recent issue (Log4Shell) is one of the biggest security issues ever seen. The Log4J issues in the software applications might affect millions of devices. This time we got a fast patch, and the developers could quickly secure most of the critical…

In this article, we will see JUnit and Mockito in action using 2 Java components, a service class, and a repository class. We will start by creating the classes and then write tests in different ways to use concepts like, assert, verify, check for thrown exception, ArgumentMatcher, and ArgumentCaptor…

In this article, we will create and test using both unit and integration tests a small Spring Boot application with a REST API. If you don’t have any experience with JUnit5 and Mockito, you can start with this article. Tools used: Spring Boot 2, Spring Data JPA, H2 as an…

Hexagonal Architecture is an architectural design pattern that makes the application highly maintainable and fully testable. It keeps the important parts of the application isolated from outer components. Components are integrated into the core through ports and adapters. The core comprises business logic and domain layers. Also known as Ports and Adapters Pattern it has a lot of benefits visible in the long term.