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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.

GraphQL, Java, and Spring: The Latest Features by Rossen Stoyanchev @ Spring I/O 2024

Leider ist der Eintrag nur auf English verfügbar.
27. April 2025 by Bjoern in Enterprise Software, Software
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OpenAPI 3 and Spring Boot 3 – What’s New? by Badr Nass Lahsen @ Spring I/O 2024

Leider ist der Eintrag nur auf English verfügbar.
26. Januar 2025 by Bjoern in Enterprise Software, Software
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Making Spring Cloud Gateway Your Perfect API Gateway Solution by Dan Erez @ Spring I/O 2024

Leider ist der Eintrag nur auf English verfügbar.
29. September 2024 by Bjoern in Enterprise Software, Software
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WireMock Spring Boot

Leider ist der Eintrag nur auf English verfügbar.WireMock is an API mocking tool that enables developers to simulate REST APIs during testing. In a system-under-test fashion, it allows us to remove external, potentially flaky, dependencies from our test environment to make our unit tests more focussed and more reliable. WireMock Spring Boot is a new library by consultant and prolific open source contributor Maciej Walkowiak that "drastically simplifies WireMock configuration in a Spring Boot and JUnit 5 application". Featuring a fully declarative ...
5. November 2023 by Bjoern in Enterprise Software, Software
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Problem Spring Web: A Library for Handling Problems in Spring Web MVC

Leider ist der Eintrag nur auf English verfügbar.Problem Spring Web is an implementation of the proposed application/problem+json HTTP API problem details response for Spring Web (im both its MVC and WebFlux flavours). Error responses should be a first-class citizen when it comes to providing REST APIs. These responses often are generated in an ad-hoc, non-standardised fashion, which not only makes handling such responses more difficult and tedious in client applications but also makes for less maintainable software in the back-end software ...
23. Oktober 2022 by Bjoern in Enterprise Software, Software, Web Applikation
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Documenting REST APIs Provided by Express Applications

Leider ist der Eintrag nur auf English verfügbar.swagger-jsdoc is an NPM library that allows us to generate an OpenAPI specification for REST APIs provided by an Express application. swagger-jsdoc consumes YAML-formatted OpenAPI specification segments within JSDoc comments annotated with the @openapi annotation and turns those into a comprehensive OpenAPI specification for our API. This specification, in turn, can for example be used for automatically having a Swagger UI documentation page created for our REST APIs (using Swagger UI Express, for instance). While annotating Express ...
13. März 2022 by Bjoern in Software, Web Applikation
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Automating Processes: Meeting Notes

Leider ist der Eintrag nur auf English verfügbar.One of the key benefits of business software, or as a matter of fact, any software, is automation of tedious, repetitive tasks. One of the three great virtues of a programmer according to Perl creator Larry Wall is laziness as defined in: "The quality that makes you go to great effort to reduce overall energy expenditure. It makes you write labor-saving programs that other people will find useful and document what you wrote so ...
13. Juni 2021 by Bjoern in Business, Software
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CORS: What It Is and How It Works

Leider ist der Eintrag nur auf English verfügbar.Expanding on last week's article on best practices for REST API Design I'd like to point to a specific aspect working REST APIs frequently entails: A browser security feature called "Cross-Origin Resource Sharing (CORS)". This feature allows you to define which resources provided by a web application are supposed to be accessible from which origin, which in turn typically is comprised of protocol, host / domain name and port. This website's origin for example is ...
2. Mai 2021 by Bjoern in Front End Entwicklung, Software, Web Applikation
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REST API Design: Best Practices

Leider ist der Eintrag nur auf English verfügbar.It's probably safe to say that REST (REpresentational State Transfer - originally described by Roy Fielding) is the most widely used architectural pattern when it comes to APIs in web application contexts. From statelessness, to self-descriptive messages, and hypermedia as the engine of application state (HATEOAS) REST comes with quite a few principles, constraints, patterns, and flavours, not all of which are used or applied consistently with each REST API. REST often is a rather ...
25. April 2021 by Bjoern in Software, Web Applikation
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