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Howard van Rooijen's Blog

Announcing Power BI Weekly!

by Howard van Rooijen

We launched Azure Weekly, a free weekly newsletter, back in 2014. 200+ issues and many thousands of global subscribers later, it’s still going strong. Last month Ed Freeman pointed out that analytics section of Azure Weekly was mainly full of Power BI articles and that it was by far the largest category in the newsletter. […]


ML.NET, Azure Functions and the 4th Industrial Revolution

by Howard van Rooijen

TLDR; There is a lot of hype around AI & ML. Here’s an example of using ML.NET & Azure Functions to deliver a series of micro-optimisations, to automate a series of 1 second tasks. When applied to business processes, this is what the 4th Industrial Revolution could look like. We’re in the 3rd major hype […]


Good Reads in 2018

by Howard van Rooijen

Most people are publishing lists to mark the passing of yet another year. I need a few more weeks to reflect on 2018 @ endjin, but I do have a list of the books (both technical and non-technical) I’ve bought in 2018. The first one is technically a cheat, as I’ve just pre-ordered it. After […]


We’re currently building a Data Governance Platform product that enables UK Financial Services organisations to discover and manage the life-cycle, usage, risk and compliance requirements of data assets across the organisation. Much of the core functionality is delivered using Cosmos DB’s Gremlin API to model data lineage and other relationships best represented by a graph […]


I’m very excited that Ian Griffiths has joined endjin as a “Technical Fellow”. This is a new career pathway branch we created especially for Ian, as he didn’t really fit into any of our existing roles; his skills and expertise exemplify a pathway that many software engineers desire, but few have the opportunity to achieve […]


OpenAPI Document Converters for Visual Studio 2017

by Howard van Rooijen

In my previous post I documented a technical spike I carried out to see how I could take the OpenAPI.NET SDK and create a Custom Tool in Visual Studio, in particular a Single-File Generator, that could be used to improve the Azure Functions v1 local development experience. Since then the OpenAPI.NET SDK reached v1.0 and while I was […]


OpenAPI code generators for Visual Studio

by Howard van Rooijen

Building RESTful APIs is a common activity at endjin. If you’ve seen our API Maturity Matrix, you’ll realise that we spend quite a lot of time thinking about the strategy, governance, legal, commercial, and operational side of building APIs along with the standard concerns of design, development, quality, infrastructure and support. One of the most […]


We’re talking about Cosmos DB at Future Decoded 2017!

by Howard van Rooijen

We’re very excited to announce that at Future Decoded on 01 November from 11:30 – 12:30 in L3 – Session Room 11, we’re going to be sharing our experiences with Cosmos DB! Co-presenting with Microsoft’s Phil Harvey, endjin’s Director of Engineering, James Broome and Engineer Mike Larah are going to provide an overview of Cosmos […]


Over the last few week’s I’ve been catching up on my reading backlog and serendipity meant that I read Simon Sinek’s “Start With Why: How Great Leaders Inspire Everyone To Take Action” which was published in 2009, shortly followed by Satya Nadella’s “Hit Refresh: The Quest to Rediscover Microsoft’s Soul and Imagine a Better Future […]


Digital Transformation is the buzzword of the moment; organisations are trying to reconfigure themselves to operate in the digital age. One of the key enablement strategies involves putting APIs at the heart of the organisation to centralise access to data, logic and value, while removing those traditional barriers that prevent collaboration between organisational silos. APIs […]


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