Home » Author Archives: Jos Dirksen (page 2)

Author Archives: Jos Dirksen

First steps with REST, Spray and Scala

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On this site you can already find a couple of articles on how to do REST with a multiple of different frameworks. You can find an old one on Play, some on Scalatra and I even started an (as of yet unfinished) series on Express. So instead of finishing the series on Express, I’m going to look at Spray in ...

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Use reactive streams API to combine akka-streams with rxJava

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Just a quick article this time, since I’m still experimenting with this stuff. There is a lot of talk around reactive programming. In Java 8 we’ve got the Stream API, we got rxJava we got ratpack and Akka has got akka-streams. The main issue with these implementations is that they aren’t compatible. You can’t connect the subscriber of one implementation ...

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Widgets and dashboard with Atlasboard, Node.js and d3.js

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So it’s been a while since I added something to this blog. I’ve been very busy with work and at the same time finishing up my second book on Three.js. For our company we’re looking for a new and flexible way to create dashboards. We want to use these kinds of dashboard to monitor the various development teams, provide a ...

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Create a simpe RESTful service with vert.x 2.0, RxJava and mongoDB

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A new article after an hiatus of almost half a year. In this article we’ll have quick look at how you can get started with vert.x and more interestingly how you can use RxJava to make programming asynchronous systems a lot easier. We’ll cover the following subjects: Create an empty vert.x project using maven Import in IntelliJ and create a ...

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Getting started with Scala and Scalatra – Part IV

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Welcome to the last part of this series of tutorials on scala and scalatra. In this part we’ll look at how you can use Akka to handle your requests using an asynchronous dispatcher, how to use subcut for dependency injection and finally how you can run the complete API in the cloud. In this example I’ve used openshift from JBoss ...

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Getting started with Scala and Scalatra – Part III

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This post is the third on a series of articles I’m writing on scalatra. In ‘part I’ we created the initial environment, and in ‘part II’ we created the first part of a REST API and added some tests. In this third part of the scalatra tutorial we’re going to look at the following topics: Persistency: we use scalaquery to ...

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Twitter REST API from Scala and Java using signpost

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If you’ve read some other articles on this blog you might know that I like creating visualizations of various datasets. I’ve just started a small project where I want to visualize some data from Twitter. For this I want to retrieve information about followers and profile information directly from twitter. I actually started looking for a set of all twitter ...

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Getting started with Scala and Scalatra – Part II

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In the previous part of the tutorial we created a simple application from scratch and setup Eclipse so we could edit the scala files for scalatra. In this second part of the tutorial you’ll learn how to do the following: How to start scalatra with embedded Jetty for easy testing and debugging Create a simple REST API that returns JSON ...

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Getting started with Scala and Scalatra – Part I

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In this series of tutorials we’re going to look a bit closer at scalatra. Scalatra is a lightweight scala based micro-web framework, that can be used to create high performance websites and APIs. In this first tutorial we’ll just get started with the installation of scalatra and import our test project into Eclipse. SBT and giter8 Before you can get ...

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