my blog. for you.

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Let’s talk digital.

I’m an independent IT consultant and entrepreneur in the Internet and software business. I’m interested in design, enterprise applications, web apps and SaaS products. I design and develop business solutions and applications. I help companies in terms of software quality and knowledge transfer, e.g. with Angular and Spring Boot.

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Reden wir über Digitales.

Ich bin selbständiger IT Berater und Unternehmer in der Internet und Software Branche. Ich beschäftige mich mit Design, Enterprise Applikationen, Web Apps und SaaS Produkten. Ich entwerfe und entwickle Business Lösungen und Anwendungen. Ich helfe Unternehmen in Sachen Software Qualität und Wissenstransfer, z.B. mit Angular und Spring Boot.

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[:en]Aaron Parecki – Why Do We Really Need OAuth Anyway? @ beyond tellerrand Düsseldorf 2021[:]

[:en]At this year's beyond tellerrand Düsseldorf IndieWebCamp co-founder and OAuth consultant Aaron Parecki gave a talk about OAuth, why we need it, and how we can use it to simplify authentication and authorization in web applications: Aaron Parecki - Why Do We Really Need OAuth Anyway? - beyond tellerrand Düseldorf 2021 from beyond tellerrand on Vimeo. Aaron also provides a guide to building an OAuth 2.0 server and a video course titled "The Nuts and Bolts of OAuth 2.0".[:] Read more

[:en]Stratospheric – 1.3 Released: 🔒SSL Setup Made Easy[:]

[:en]After a minor update last month, which was largely about migrating to Spring Cloud AWS 2.3.2 and various configuration improvements, Tuesday we released a major update of Stratospheric - From Zero to Production with Spring Boot and AWS! Apart from general housekeeping efforts, revision 1.3 of the ebook contains these major improvements: A consistent SSL and (optional) custom domain setup: The previous order in which we introduced various infrastructure components caused problems with duplicate HTTP listeners in our ELB configuration and an SSL ... Read more

[:en]Welcome Back: beyond tellerrand Opening Titles Düsseldorf 2021[:]

[:en]Last week, I was at the 2021 Düsseldorf edition of beyond tellerrand. As most on-site events during the last two years, beyond tellerrand had been postponed until, earlier this year, they got the go-ahead that the event was finally allowed to take place again. In spite of the rather short time to prepare, Marc and his team once again put on a fantastic event. These beautiful opening titles celebrate the event's return to the limelight with the simple, but very appropriate, words "Welcome ... Read more

[:en]The Layers Of The Web – Jeremy Keith @ beyond tellerrand Berlin 2019[:]

[:en]Earlier this week - after a hiatus of almost two years on account of having been postponed due to the pandemic - this year's beyond tellerrand conference, an event about design, creativity, and the web, went ahead again. Even though Marc Thiele, the mastermind, organiser, and genuinely awesome person behind beyond tellerrand, ran a terrific series of online events under the Stay Curious moniker while on-site events weren't allowed to take place, it was amazing to be back at this wonderful event ... Read more

[:en]Java Language Features Introduced From Versions 8 Through 17[:]

[:en]The Java programming language and the Java Virtual Machine (JVM) are known for being very stable and favouring compatibility over new language-level features. This focus on stability arguably is one of the reasons why Java is so popular with larger companies, particularly those of the enterprise variety, where reliability, maintainability and a long-term outlook are key and typically more important than the latest and greatest features. However, starting in 2017, with the Java release cycle changed to rapid 6-months iterations, from the previous ... Read more

[:en]What is a (business) process, actually?[:]

[:en]The terms process and business process, in particular, are sometimes used lightly and without thinking too much about what those terms actually mean. Drawing upon and thinking in terms of the concept of a value chain (i.e., a set of activities designed to create a product or service that has value to a customer) some time ago I came up with this definition of what constitutes a process, not just when it comes to business and market value, but also with regard ... Read more

[:en]Revisiting Popular Posts: Spring Batch Resources & Maven Failsafe With Spring Boot[:]

[:en]Two of the most popular posts on this blog cover resources for Spring Batch and how to use Maven Failsafe with Spring Boot: Spring Batch Resources: Batch Processing, ETL And Data Conversion Using Maven Failsafe With Spring Boot While doing some regular blog housekeeping, I recently revised those articles and fixed a few broken links. If you're interested in these technologies and frameworks, you might want to check those articles out.[:] Read more

[:en]Inversion of Control vs Dependency Injection[:]

[:en]Dependency injection is one way of implementing inversion of control - a programming principle that allows for better modularity and extensibility. Dependency injection is commonly achieved via constructor injection, field injection, or setter injection. Inversion of control is an abstract concept, which dependency injection is a realisation of. Other methods of implementing inversion of control for example include the template pattern, service discovery, delegates, events, and currying (when applying a functional programming paradigm). [:] Read more

[:en]Stratospheric – Version 1.1 Released[:]

[:en]Last week, we released the first update of "Stratospheric - From Zero to Production with Spring Boot and AWS" after our 1.0 release in August. Thanks a lot to GitHub users anthony-be, skhurram, alrawas, mygordienko, and lealceldeiro, who contributed to our sample Todo app by creating issues and pull requests. The code changes resulting from these contributions in turn are reflected in our latest update for the eBook, in which we clarified some aspects about scaling out / sticky sessions and added a ... Read more

[:en]Guest Post on the AWS Open Source Blog: Using PostgreSQL with Spring Boot on AWS[:]

[:en]Last week, another two-part article by Tom Hombergs, Philip Riecks, and me was published on the AWS Open Source Blog. Thanks a lot to Ricardo Sueiras for making this possible. This time around we wrote about how to use a PostgreSQL database with Amazon RDS and Spring Boot: Using PostgreSQL with Spring Boot on AWS — Part 1 Using PostgreSQL with Spring Boot on AWS — Part 2 These articles draw upon the chapter Connecting to a Database with Amazon RDS from our eBook Stratospheric ... Read more
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