This guide walks you through the process of connecting to PostgreSQL databases from Java web applications using MyBatis and Spring Framework. The UI part will be built using Vaadin Framework which allows you to build modern single-page web apps with only Java.
Let's take a step back and look at the rise of microservices and REST and the apparent decline of SOAP-based web services. What are the statistics and the reasons?
When putting a system together, you need to decide whether you're going to keep the code in one repository or split it across multiple repos. Here's some insight.