This guide shows you how to implement custom error handling in Spring Boot. We use not only the well-known ControllerAdvice and ExceptionHandler annotations but also DefaultErrorAttributes and ErrorController to make your custom error attributes uniform and consistent.Read More →
@RestController example with Spring Boot and Swagger In this article I’ll explain how to set up a basic @RestController in a Spring Boot application, using both @GetMapping and @PostMapping annotations. Besides, this application includes Springfox Swagger so the REST API endpoints are documented and accessible through this tool.Read More →
Sometimes you want to connect to a REST API from a Java application. There are several approaches to it, from parsing raw JSON content to model the classes in Java with all possible details. In this post, I describe how to solve this in a practical manner, especially the fact of not having the JSON schema for the data that you’re retrieving from the REST API. How can we map this structure to Java Objects with almost no effort? I use as an example the SonarQube API, given that is the one employed in another post on this blog.Read More →