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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.

Jess Frazelle: “For the Love of Pipes”

Leider ist der Eintrag nur auf English verfügbar.Somewhat recently, Jess Frazelle wrote about her love of UNIX pipes, a sentiment I wholeheartedly share, to the extent that I think web apps should behave more like Unix programs by making data readily available via APIs so other applications can easily process that data. This, in a nutshell, is the Unix philosophy as stated by Doug McIlroy: Make each program do one thing well. To do a new job, build afresh rather than complicate old ...

HTTP and REST Standards, Protocols and Headers for More Secure and More Robust Applications

Leider ist der Eintrag nur auf English verfügbar.Standards.REST is a website that helps you create better, more robust HTTP- and REST-based applications by providing an overview of existing, proven standards that allow you to build on existing solutions rather than re-invent the wheel yourself. The list of standards mentioned includes OAuth 2.0, the HTTP Caching standard and Application-Level Profile Semantics (ALPS), which - among others - is used extensively in Spring Data REST and Spring HATEOAS. On a closely related note, Stefan ...

29. September 2019 by Bjoern in Enterprise Software, Front End Entwicklung, Software, Web, Web Applikation

HTML is an API

Leider ist der Eintrag nur auf English verfügbar.HTML is an API or rather it could be if we used more in the way it was intended. In a comment on this Hacker News post about Toapi, a library that makes clever use of XPath expressions in order to provide an API from existing web pages, a user wrote Now I don't want to be a downer: but we collectively seem to have forgotten that HTML as a markup language with sufficient semantic ...

20. Mai 2018 by Bjoern in Front End Entwicklung, Software, Web, Web Applikation

MailTrigger: A Simple HTTP-based Email Notification Service

Leider ist der Eintrag nur auf English verfügbar.Having to send some sort of transactional email in order to notify a user of an event or a task that needs to be taken care of is a commonplace requirement for many applications. While there's no shortage of libraries, APIs and services that help with one or more aspects of this requirement there's no simple yet comprehensive solution that covers everything from triggering an email event, managing the content of different notification email templates ...

24. Dezember 2017 by Bjoern in Software

More on JSON and REST API Specifications

Leider ist der Eintrag nur auf English verfügbar.Expanding on my previous posts about annotating and validating JSON data structure with JSON Schema defining and documenting REST APIs using Swagger I have two additional suggestions for tools that help you define and build HTTP-based APIs in a less haphazard, more deliberate manner: JSON API: While JSON Schema allows you to annotate and validate JSON-based data types JSON API gives you clear, opinionated guidelines for structuring JSON API responses so you don't have think about those implementation ...

29. Oktober 2017 by Bjoern in Enterprise Software, Software, Web Applikation

Swagger: A Roundtrip Tool For Creating And Consuming REST APIs

Leider ist der Eintrag nur auf English verfügbar.In this second part of my series on useful tools for developing CRUD applications I'd like to introduce Swagger and Swagger Codegen in particular. Introduce perhaps isn't exactly the right word because first of all Swagger is quite well known in developer circles these days. Secondly, a few months ago I wrote a blog post about how to use Swagger to generate client SDKs for REST APIs. Swagger - originally having originated at Wordnik is ...

10. September 2017 by Bjoern in Enterprise Software, Software, Web Applikation

Using Netflix Zuul As a Reverse Proxy / API Gateway

Leider ist der Eintrag nur auf English verfügbar.Zuul, which like the service discovery tool Eureka and the fault tolerance library Hystrix is part of Netflix' cloud orchestration stack, is a reverse proxy / API gateway. A reverse proxy conceptually works like this: A reverse proxy allows you to route requests to a single domain to multiple backing services behind that proxy. This can be conducive in situations where you want to break up your application into several loosely-coupled components that externally, that is ...

20. August 2017 by Bjoern in Enterprise Software, Software

Using Swagger to Generate Client SDKs for REST APIs

Leider ist der Eintrag nur auf English verfügbar.These days Swagger is a popular, easy-to-use tool for (semi-)automatically documenting REST APIs on-the-fly. For example, in order to document a REST API created with Spring Boot and Jersey literally all you have to do is add these two entries to your Maven pom.xml: [xml] <dependency> <groupid>io.springfox</groupid> <artifactid>springfox-swagger2</artifactid> <version>2.6.1</version> </dependency> <dependency> <groupid>io.springfox</groupid> <artifactid>springfox-swagger-ui</artifactid> <version>2.6.1</version> </dependency> [/xml] You'll then get a ready-made documentation for all your REST API endpoints. An example of how this looks like can be seen here. While this already is very useful in that it ...

21. Mai 2017 by Bjoern in Enterprise Software, Front End Entwicklung, Software

Testing REST Services with REST Assured

Leider ist der Eintrag nur auf English verfügbar.RESTful service testing can be unwieldy and difficult to get started with. Providing a REST API implies using a variety of technologies and techniques such as HTTP, JSON, authentication, various payload transfer mechanisms and content types. This is where a tool that abstracts over these technical details and facilitates their application comes in handy. REST Assured is a high-level DSL for testing REST APIs. It draws upon behaviour-driven development (BDD) and hence makes for ...

30. April 2017 by Bjoern in Enterprise Software, Software

Follow-up on “Accounting in 2016”

Leider ist der Eintrag nur auf English verfügbar.Two months ago, I wrote an article on how accounting in 2016 still is a manual and tedious process. What made me write this article in the first place was the problem that I couldn't automatically get the bank account statements for my business account into my accounting software because my bank's online banking service and my accounting software have incompatible import / export file formats and neither exposes a public API for facilitating ...

5. Juni 2016 by Bjoern in Business, Enterprise Software, Entrepreneurship, Software

Björn Wilmsmann

my blog. for you.

Reden wir über Digitales.