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Running V8 isolates in a multi-threaded ArangoDB database

Estimated reading time: 8 minutes

ArangoDB allows running user-defined JavaScript code in the database. This can be used for more complex, stored procedures-like database operations. Additionally, ArangoDB’s Foxx framework can be used to make any database functionality available via an HTTP REST API. It’s easy to build data-centric microservices with it, using the scripting functionality for tasks like access control, data validation, sanitation etc.

We often get asked how the scripting functionality is implemented under the hood. Additionally, several people have asked how ArangoDB’s JavaScript functionality relates to..

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LoopBack Connector for ArangoDB

Estimated reading time: 1 minutes

ArangoDB can be used as a backend data source for APIs that you compose with the popular open-source LoopBack Node.js framework.

In a recent blog article on StrongLoop, Nicholas Duffy explains how to use his new loopback-connector-arango connector to access ArangoDB:

Getting Started with the Node.js LoopBack Connector for ArangoDB

The tutorial uses the loopback-connector-arango which is available as npm and a demo application which is available from Github.

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Building a self-learning game with ArangoDB, io.js & AngularJS in half a day.

Estimated reading time: 2 minutes

With the ArangoDB Foxx Microservice Framework we’ve introduced an easy way to create a Web API right on top of the NoSQL database.

In early January Max challenged Andreas (AngularJS / NodeJS) that they could build a full-stack application within half a day.

The web application – in short – is a guessing game, in which the computer tries to guess a thing or animal you think of by asking a series of questions, for which you provide the answers. Here’s a demo:

http://guesser.9hoeffer.de:8000

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Crawling GITHUB with Promises

Estimated reading time: 3 minutes

The new Javascript driver no longer imposes any promises implementation. It follows the standard callback pattern with a callback using err and res.

I wanted to give the new driver a try. A github crawler seemed like a good side-project, especially because the node-github driver follows the same conventions as the Javascript driver.

There are a lot of promise libraries out there. The most popular one – according to NPM – was promises. It should be possible to use any implementation. Therefore I used this one.

The following source code can be found on github.

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FullStack London

Estimated reading time: 2 minutes

I recently had the chance to visit FullStack London, a well organized conference. Thanks a lot to Skills Matter. FullStack was opened by Douglas Crockford about “The Better Parts” of ES6. I cannot wait to start using them. Douglas was followed by Isaac Schlueter talking about open source in companies. Although this talk was not technical I learned a lot and it was very inspiring.

The remainder of the conference was all about using JavaScript mostly on server-side using Node.js or in robotics. As robotics is not my kind of topic I visited the talks about server-side JS. They confirmed my..

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Feature Preview: Using NPM packages for ArangoDB

Estimated reading time: 1 minutes

ArangoDB follows the Common.JS specification for modules. However, it would be very convenient, if there was an easy way to install a package like “underscore.js”. These package are, for instance, available using NPM. There is a draft for packages on Common.JS which seems to be compatible with NPM.

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ArangoDB Client for nodejs released

Estimated reading time: 1 minutes

Note: Our new official nodejs driver is arangojs. You also can look at this blogpost about the new driver.

We got a note from Anders Elo from Sweden. He told us that he has released a ArangoDB client for node.js. Awesome! 🙂 You can find it on Github under the URL https://github.com/kaerus/arango-client. To install locally

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