A Hands-On Tutorial to ExoPlayer — As an Android developer you might come across the task of having to implement video-playback in your Jetpack Compose application. I was in the same situation, started research on this topic and found a nice solution which I present in this tutorial. When researching this topic I came across two…

I have two Mac Book Pro, one with an Intel and one with an M1 processor. From time to time I need to run some code on the Intel-Mac, e.g. Docker images that are only available for Intel-chipsets. Instead of switching between the two Macs, I rather open a terminal…

Today, we are going to bridge two worlds. One world is Serverless Kafka and the other is the one of Serverless Functions. This tutorial will demonstrate how to generate Kafka messages that will trigger Lambda Functions. …

A Practical Introduction to Task and Await — This post is an introduction on how to asynchronously execute code in Swift. First, a general view on the topic will be provided. After that, two concrete code examples will demonstrate on how to use asynchronous code in a practical real-life example. The code examples have been created for Xcode…

Databases are everywhere these days and with Change Data Capture one can turn these into a source for Event-Driven Systems without much effort. There are tools like Debezium and Kafka Connect that bridge the gap between these two worlds and therefore turning a classical data-driven application into an event-driven application. …

Detecting and Tracking Faces and Face Landmarks in Realtime — Welcome to another article exploring Apples Vision and VisionKit Framework. I have already written two articles and code samples that are using these frameworks. The first one that I have written in the past is “Barcode Scanner in SwiftUI”. The second article is quite young and is called “Document Scanner…

Everything You Need To Get Started Welcome to yet another episode in my series on Event-Driven Architectures. This is the third part of my series. So far we had: Event-Driven Architectures with Kafka and Java Spring-Boot + Revision 1 Event-Driven Architectures with Kafka and Python + Revision 1 This article…

Exploring a True-Serverless Event-Infrastructure — There is no denying, that the new Apple M1 MacBooks are awesome. I wouldn’t consider myself a fanboy, but those machines are awesome. Let me repeat myself: just awesome. Those processors totally rock in many aspects. Of course, here comes the “but”. Not everything is at a state where I…

Extracting Text From Documents Using Artificial Intelligence — In this tutorial we are going to learn how to scan documents and extract the containing text with Document Segmentation and Optical Character Recognition. A fully working iOS application which is provided as source code will help us understand which of Apples frameworks and specific classes are required to fulfil…