Exception Handling in Spring Boot REST Web Services: A Real-World Pattern
DZone If an exception occurs when processing an HTTP request in your services, you should return a 4xx or 5xx response with a precise body.…
Design Patterns Explained: Adapter Pattern With Code Examples
DZone Design patterns provide a reliable and easy way to follow proven design principles and to write well-structured and maintainable…
Build Your Own Smile Detector With Wia, Amazon Rekognition, and a Raspberry Pi
DZone For this tutorial, we’re going to build a facial recognition camera that can detect if someone is smiling (or…
Making Pivot Tables with Java Streams from Databases
DZone Raw data from database rows and tables does not provide much insight to human readers. Instead, humans are much…
Introduction to the Apache POI Library
DZone We use Office applications frequently to serve many purposes. Have you ever thought of doing the task of reading…
Microservices Are Not Magic-Driven
DZone Software is not driven by "magic that just happens." It works thanks to well-designed, reliable mechanisms. As software engineers,…
Credential Vault in Mule 3 vs Mule 4
DZone Implementing a credential vault using secure property placeholders, encryption-key, and a credential vault is different in Mule 4 when…
Distributed Tracing With Zipkin and ELK
DZone While logs can tell us whether a specific request failed to execute or not and metrics can help us…
Java Templating With Rocker
DZone In this post, we will have a quick look at Rocker, a statically typed and fast Java 8 template…
Introduction To Mule API Security: Simple Authentication
DZone This post covers the basic procedures to set up simple Mule API security. I assume that the audience has…