ASP.NET Core

Background Most of us are all “slackers”, meaning we truly do spend a significant amount of time using Slack. Slack is a collaboration hub for work, no matter what work you do. It’s a place where conversations happen, decisions are made, and information is always at your fingertips. www.slack.com It’s wildly popular in the Developer Community! In fact, almost to a fault…people are constantly sharing their “slack fatigue”.

I’m proud to share that this post is part of the C# Advent Calendar and it’s my second year contributing to it! I encourage you to check out all the others here.

Developers Are Lazy! In the world of web development it is hard to escape certain tools that we are forced to rely on. As developers we’re innately lazy and it is safe to say that perhaps we don’t really care enough to look into other tooling options.

Inspiration I recently returned from Charleston, South Carolina – where I spoke at SyntaxCon. The event was very professionally organized and gave me inspiration for Cream City Code. In the main hall they had a HALO by Simple Booth. It serves as a photo booth with a conference specific backdrop – which is perfect for sharing the conference experience. I looked into purchasing one but was encouraged to simply write my own… so I did and this blog will detail that process.

Intro As a developer, I can say that developers are lazy - at least I know and acknowledge that I am. If I’m tasked with something even the slightest bit repetitious I’ll script it out, or find a way to automate it. Likewise, if I fall into a habit of forgetting something important - I’ll figure out a way to not forget. Especially when it comes to securing an application.

Being a software developer, it’s in our nature to configure various aspects of the applications that we write. With ASP.NET Core configuring our applications is really straight forward. Luckily, there is a lot of really well written documentation surrounding this topic.   ASP.NET Core - Configuration   ASP.NET Core - Options However, there is still room for improvement. I’ve prepared a few tips that can enhance developer productivity by taking advantage of various C# features.

Overview In .NET it’s really easy to create your own interfaces and implementations. Likewise, it’s seemingly effortless to register them for dependency injection. But it is not always obvious how to override existing implementations. Let’s discuss various aspects of “dependency injection” and how you can override the “framework-provided services”. As an example, let’s take a recent story on our product backlog for building a security audit of login attempts. The story involved the capture of attempted usernames along with their corresponding IP addresses.

Overview Like the title claims, if you’re using ASP.NET Core and expecting the Thread.CurrentPrincipal or ClaimsPrincipal.Current to be populated you’d be wrong. This is not the IPrincipal you’re looking for. In this post we’ll discuss what happened and what you need to do now. Additionally we’ll cover all the peripheral benefits as a result of this change. History If you have ever done any .NET Framework development, you’ve probably seen the Thread class.