Spring Boot

Testing Time-Based Features with Feature Flags

Tom Hombergs
August 3, 2022

Time-based features in a software application are a pain to test. To test such a feature, you can (and should) write unit tests, of course.

Spring Boot

Exposing a Helpful Info Endpoint with Spring Boot Actuator

Saikat Sengupta
March 28, 2022

In a distributed, fast-paced environment, dev teams often want to find out at what time they deployed the app, what version of the app they deployed, what Git commit was deployed, and more.

Spring Boot

Protect Your Code from NullPointerExceptions with Spring’s Null-Safety Annotations

Saikat Sengupta
February 1, 2022

NullPointerExceptions (often shortened as “NPE”) are a nightmare for every Java programmer. We can find plenty of articles on the internet explaining how to write null-safe code.

Spring Boot

Tracing with Spring Boot, OpenTelemetry, and Jaeger

Tom Hombergs
January 9, 2022

In a distributed system, many services can be involved in creating a response to a single request. Not only for debugging purposes it’s essential that the path of such a request can be traced through all involved services.

Spring Boot

Complete Guide to Spring RestTemplate

Pratik Das
December 29, 2021

REST-styled APIs are all around us. Many applications need to invoke REST APIs for some or all of their functions. Hence for applications to function gracefully, they need to consume APIs elegantly and consistently.