ICYDK: If an exception occurs when processing an HTTP request in your services, you should return a 4xx or 5xx response with a precise body. A naive way to do so would be to catch the exception in your controller or service and return an appropriate ResponseEntity manually. But Spring provides smarter techniques — as you’d expect — which are well explained in its blog. In this post, we’ll discuss a real-world pattern for handling exceptions elegantly by using a couple of those techniques.
For code examples, we’ll refer to Spring Lemon. If you haven’t heard of Spring Lemon, it’s a library encapsulating the sophisticated non-functional code and configuration that’s needed when developing real-world RESTful web services using the Spring framework and Spring Boot. https://goo.gl/MYp8aN #DataIntegration #ML
