Yesterday I really wanted to do something with Python. Also a friend sent me a link, which contained many currently free computer science books from Springer. Now I didn’t want to downloading each book separately. So I thought to myself, how hard can it be to download the books automatically…

Germany organised the hackathon #wirvsvirushack on 20th March. About 42 thousand people from all over Germany took part in the hackathon to help in the corona crisis with new digital ideas. The goal was to create a prototype or an application that can help in the crisis. But this article…

Every time I get a new Mac, I get upset that I have to set it up again. Yeah, I could just use the time machine mackup. But this would bring me a lot of files and data on the new fresh Mac, which I don’t need there. A script…

Als Minimalist ist es nicht das Ziel so wenig wie möglich zu besitzen, es ist das Ziel, dass jeder Gegenstand, den man besitzt einen Zweck erfüllt. Hierbei geht es darum, unnötige Dinge aus dem Leben zu verbannen und nur das zu behalten, was man benötigt, was einen voran bringt. Das…

HATEOAS steht für Hypermedia as the Engine of Application State. Einige bezeichnen es für REST-Schnittstellen als unverzichtbar. (heise) Das Prinzip wurde von Roy Fielding erstmals in seiner Doktorarbeit beschrieben und später in seinem Blog weiter vertieft. Doch warum findet man es so selten in REST Schnittstellen? Bisher sehe ich fast…

In my last article I introduced AWS Lambda and how to create your first Lambda function. Now I want to develop a more useful function in this article. Imagine you want to watch a product price trend at Amazon. A service that gives you the current price of the product…

AWS Lambda has long been a topic I would like to deal with ⏳. Now I have watched and started several tutorials. But most of them were either too long or too short. They all showed how to upload the function, but not how to test it locally. Now I…

Microservice architecture is currently the talk of the town. All companies want to replace their applications with microserives and move to the cloud. They hope for less downtime, better scalability, faster deployment, better testability and much more. But all these benefits are useless if developers are frustrated and development is…

The following article deals with Apache Kafka, and how to use it with Docker and Vert.x. We will develop a small example and send data over a queue from a REST endpoint to a listener endpoint. What’s Kafka Apache Kafka is an open source software that provides data streams over a distributed…