As there is no container in Undertow Server and everything is built on top of POJO, it is very easy to debug your API application within your IDE. Debug with IntelliJ Idea Debug with Eclipse Remote Debug with Docker Container Read More »

This tutorial shows how to use service IoC injection in light*4j frameworks. All material is in the Github service module test folder. Here are the test cases are broken down to smaller piece so that they are easy to understand. The best way to learn it is to debug the test cases one by one and stop into the service model. Introduction Single Interface Single Implementation Read More »

Services typically need to call one another. In monolithic applications, services invoke one another through language-level methods or procedure calls. In a traditionally distributed system deployment, services run at fixed, well-known locations (hosts and ports), so they can easily call one another using HTTP/REST or some RPC mechanism. However, a modern microservice-based application typically runs in a virtualized or containerized environments where the number of instances of a service and their locations (IP and port) changes dynamically. Read More »

The CI/CD pipeline needs different type of tests to ensure the quality of the product before deploying on production. In microservices architecture, the integration test is different than monolithic applications as we need to have all upstream and downstream services to be up and running at the same time to test the interaction of these services. There are four type of tests we need to perform before release the service to production - unit test, integration test, consumer contract test and end-to-end test. Read More »