Introducing Code Fragments extension in Visual Studio Code for managing snippets during presentations

November 26, 2017 · visual studio visual studio code presenting

Recently I started working on a simple Visual Studio Code extension I'd like to introduce in this post. Occasionally I do tech presentations, in which I usually like to do some live code demos. To make this smoother, Visual Studio »

Build and publish documentation and API reference with DocFx for .NET Core projects

November 17, 2017 · .net-core appveyor docfx

This guide shows how to build and publish API documentation for a .NET Core library, using DocFx, GitHub Pages and AppVeyor. »

Secure an ASP.NET Core api with Firebase

August 22, 2017 · security firebase

Introduction Update: Updated the code samples according to the changes introduced in .NET 2.0. Firebase is an application development framework and infrastructure provided by Google. It offers a handful of services, like Storage, Analytics, Notifications and Hosting, mainly targeted »

Troubleshooting high memory usage with ASP.NET Core on Kubernetes

August 17, 2017 · kubernetes .net-core

At work we are running several ASP.NET Core APIs on the hosted version of Kubernetes in the Google Cloud (GCE—Google Container Engine). In almost all of our components we noticed that they had unreasonably high memory usage. The »

Running ASP.NET Core in auto-scaling containers? Warm up!

July 29, 2017 · web api kubernetes

ASP.NET Core APIs are not warmed up by default. This is easy to illustrate, let's scaffold a brand new empty api. mkdir warmuptest cd warmuptest dotnet new webapi dotnet restore dotnet run Then let's do two consecutive requests against »

Tear down your ASP.NET Core api between integration tests

June 21, 2017 · c# integration-testing testing couchbase

The way to write integration tests for ASP.NET applications has been made much easier with the advent of ASP.NET Core. This is mainly due to the programming model becoming super modular, which means that it is really easy »

Setting up Coveralls with OpenCover for a .NET Core project

June 14, 2017 · appveyor testing opencover coveralls .net-core

Update: The original version of this post was written when the dotnet toolchain was built on top of the project.json based project structure. Since then the project.json was deprecated, and .NET Core moved to a csproj-based approach. Because »

A data model exercise in two languages, part 2: F#

May 22, 2017 · f# computer science c#

Introduction In the previous post I took a look at a data modelling exercise in C#, I designed a data model to represent a card in the standard 52-card deck. We saw some of the problems we face when designing »

A data model exercise in two languages, part 1: C#

May 4, 2017 · c# f# computer science

Introduction When I'm learning a new programming language, I usually like to do some coding exercises to get familiar with the various language features, and to get used to the syntax. Many of these exercises—or katas—are about implementing »

Playing with the composition of the Kleisli category in C#

April 19, 2017 · c# f# category-theory

Introduction Recently I learnt about an interesting concept in category theory called a Kleisli category. Let's look at a concrete example I took from this blog post (in his series about category theory) by Bartosz Milewski. We would like to »