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Using snake case column names with Dapper and PostgreSQL
This is a follow on to a previous post about customising naming conventions for PostgreSQL and EF Core. In this post I describe one way to use snake case naming conventions when using Dapper, rather...
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Adding Segment client-side analytics to an ASP.NET Core application
Virtually all web applications use some form of user analytics to determine which aspects of an application are popular and which are causing issues for users. Probably the most well known is Google...
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Running smoke tests for ASP.NET Core apps in CI using Docker
In this post I'll discuss a technique I use occasionally to ensure that an ASP.NET Core app is able to start correctly, as part of a continuous integration (CI) build pipeline. These "smoke tests"...
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Why isn't my ASP.NET Core environment-specific configuration loading?
I was recently standing up a new ASP.NET Core application running in Docker, and I was seeing some very strange behaviour. The application would start up without any problems when running locally on my...
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The difference between GetService() and GetRequiredService() in ASP.NET Core
This post looks at the GetService<T>() and GetRequiredService<T>() methods of the default/built-in ASP.NET Core DI container, provided in Microsoft.Extensions.DependencyInjection. I'll...
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How to register a service with multiple interfaces in ASP.NET Core DI
In this post I describe how to register a concrete class with multiple public interfaces in the Microsoft.Extensions.DependencyInjection container used in ASP.NET Core. With this approach you'll be...
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Using Scrutor to automatically register your services with the ASP.NET Core...
In this post I describe how to use the open source library Scrutor by Kristian Hellang to add assembly scanning capabilities to the ASP.NET Core DI container. Scrutor is not a dependency injection (DI)...
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Adding decorated classes to the ASP.NET Core DI container using Scrutor
In my last post, I described how you can use Scrutor to add assembly scanning to the ASP.NET Core built-in DI container, without using a third-party library. Scrutor is not intended to replace...
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Creating an ASCII-art tree in C#
I recently made my first pull request to the Cake project in which I added a command line option (--showtree) to display the tasks in a Cake script in a tree view. Creating the tree view itself took me...
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Building an open source GitHub project using Azure DevOps
In this post I show how I added Azure DevOps CI to one of the .NET Standard library I have on GitHub. I'll walk through the various steps I took to get CI/CD working for pull requests and the master...
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Using multiple instances of strongly-typed settings with named options in...
ASP.NET Core has used the Options pattern to configure strongly typed settings objects since before version 1.0. Since then, the feature has gained more features. For example ASP.NET Core 1.1...
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The dangers and gotchas of using scoped services in IConfigureOptions
The configuration system in ASP.NET Core allows you to load key-value pairs from a wide variety of sources such as JSON files, Environment Variables, or Azure KeyVault. The recommended way to consume...
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Configuring named options using IConfigureNamedOptions and ConfigureAll
This is a follow on to my previous post on using multiple instances of strongly-typed settings in ASP.NET Core 2.x. At the end of that post I introduced the concept of named options which were added in...
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Delaying strongly-typed options configuration using PostConfigure in ASP.NET...
In this post I describe a scenario in which a library author wants to use the Options pattern to configure their library, and enforce some default values / constraints. I describe the difficulties with...
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Simplifying dependency injection for IConfigureOptions with the...
In recent posts I've been discussing the Options pattern for strongly-typed settings configuration in some depth. One of the patterns that has come up several times is using IConfigureOptions<T>...
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Creating singleton named options with IOptionsMonitor
In recent posts I've been discussing some of the lesser known features of the Options system in ASP.NET Core 2.x. In the first of these posts, I described how to use named options when you want to have...
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Generating .editorconfig files automatically using IntelliCode
In this post I show how to install the experimental IntelliCode extension in Visual Studio, and how to use it to generate an EditorConfig file from your existing code. Background I was catching up on...
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Caching Docker layers on serverless build hosts with multi-stage builds,...
In this post I describe how I improved the build performance of my ASP.NET Core Docker containers when building on a serverless host that doesn't provide any layer caching. I used a combination of...
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Secure secrets storage for ASP.NET Core with AWS Secrets Manager (Part 1)
An important aspect of running ASP.NET Core apps in the cloud is how you secure the secrets your app requires, things like connection strings and API keys. In this post, I show one approach to securing...
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Secure secrets storage for ASP.NET Core with AWS Secrets Manager (Part 2)
In my last post, I showed how to add secrets to AWS Secrets Manager, and how you could configure your ASP.NET Core application to load them into the .NET Core configuration system at runtime. In this...
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