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We’ve had ongoing issues when deploying web and functions apps involving the locking of DLLs during the deployment. The specific case I’m going to talk about focuses on Azure Functions, but you can also run Web Apps from a package (though the Azure Pipelines tooling currently only works for functions, so you would need to […]


We were recently looking for a way to run a script on an Azure Virtual Machine that already existed (i.e. not executing it at provisioning time). Whilst there are ways to do this remotely (using PowerShell remoting, for example), these tend to require updating the VM’s networking configuration to open up ports or allow traffic […]


So, another year, another random blog topic change! This time we’ve left the world of Rx, and done a hop, skip and leap into Azure! Specifically, Azure AD, permissions and all things service principal. As part of a recent project we needed an Azure Functions App to have access to various Azure resources, including CosmosDB […]


In September I joined endjin a Technical Fellow (an entirely new branch in endjin’s career pathway to accommodate me – more on that later). I’ve has been involved with endjin since 2011, as an Associate, helping to deliver some of our most technically challenging projects (and if you go even further back, I attended Cambridge University with endjin co-founder […]


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 […]


Overflowing with dataflow part 1: An overview

by Carmel Eve

In a recent project, I was asked to produce a tool for importing a fairly large amount of data at once, this data then needed to be processed and exported. After much refactoring, I achieved a solution I was satisfied with which used TPL dataflow to execute the processing in parallel. Before I talk specifically […]


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 […]


Using Python inside SQL Server

by Ed Freeman

Hello everyone. Before Christmas I played around with SQL Server 2017’s inline Python integration capability. This capability was announced early last year, with the corresponding integration with R already being possible for a number of months. The main benefits from this are the abilities to: Eliminate data movement (having to transfer data samples from a database to […]


One of the great benefits of Azure (and the Cloud in general) is the simplicity with which you can create and scale resources. The downside to this is that you can easily lose track what you’ve got deployed, or accidentally create expensive items and leave them running. We wanted a way to track our spending […]


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