Reliability

For the last few years, I have been working on building Java microservices using Spring Boot. In day-to-day development, I often come across terms like retries, transactions, and duplicate requests, especially when building APIs that interact with other services or databases. While working on one such service recently, I came across the concept of idempotency. It’s one of those ideas that look simple on the surface but play a big role in making systems reliable. I decided to explore it in a bit more detail and write down what I learned here.