What Two Years With Microservices Taught Me

When I joined my current employer we were operating a full blown Monolith with around 20k lines of code. The Monolith was serving an Android and iOS Application which both were also developed within the team. We migrated from that Monolith to Microservice architecture. This article is about our Journey. Also: This is my first programming gig after graduating from university (despite having a formal 3 year education to programming before), so maybe it is better if you keep this in mind while reading this article. The Project Speaking about the Team: In case my mind is not playing tricks... [Read More]

Flaky Tests and other Demons

What have Demons and flaky Tests in common? I think a lot. Demons haunt you while you are living your life. They also corrupting the soul of their targets. Ok, maybe I exaggerated just a bit. Still if you think more deeply about this comparison, there is a grain of truth in it. Corrupting Tests are haunting you while you do your work: Just imagine following scenario: You modify some code and wait for the tests to finish and then out of a sudden there are test fails. Yikes. Ok, alright. Probably you did some mistakes while refactoring or you... [Read More]
Tags: tests

How We Made Our Spring Boot Applications More Robust with Redis Cache and Spring AOP

Do you know that feeling? You have a webservice dependency which is not having the best uptime? My team at work certainly has, and thought that it was time for a change. This whole article is written as a tutorial. You can find the code on the GitHub Repository. Status Quo and Evolution: Quick Chart of the Interaction from Frontend to Backend As depicted in this chart, we are having an Android and an iOS app which access our backend services. Exemplary for our total backend, I have drawn one service. As you can see it is already using Redis... [Read More]

The 4 Most Important Things Every Programmer Should Be Aware of

A lot of things you need to know as a Software developer depend on the technologies you work with. This should be a general article and therefore it shouldn’t get into too much detail about language or technology specific things. Depending on what you are currently working on or with, there might be quite some different factors. But let’s talk about the general points which I found helpful in the past: Knowledge of a Low Level Language with Manual Memory Allocation I have done this during my apprenticeship: I learned C. Yes, C without ++. There we learned a lot... [Read More]

Year++ - A Software Engineer’s New Year’s Resolutions

The time between Christmas and New Year’s Eve is always a time for me which I use to reflect a lot upon myself. It is a tranquil time of the year where I reason about the good, the bad and the ugly of the last year and what I want to achieve in the next year. So what is better than writing an own list of New Year’s Resolutions. 2018: The ugly: To make it short: I did not look after my physical health. My weekends were often spent thinking about production and whether it will break because of external... [Read More]

Why I passed on a 55% higher salary

Not sure if I am writing this article for the broader public or only myself. I guess at least this could be a fun read for myself in about a year or so. During the last few months I got a few suggestive comments from a few people that they are actively hiring. Due to the company having salaries defined in a collective agreement, I was quite aware of what kind of money we were talking back then. Between the years I now got an actual offer from an old colleague of mine which I ran into just before Christmas.... [Read More]