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Slides & Code from VSLive San Diego 2018: Feature Flag Deployments with ASP.NET Core & WebAPI

I just wrapped up my “Get Good at DevOps: Feature Flag Deployments with ASP.NET & WebAPI” talk at VSLive San Diego 2018.

As promised, here are the slides and the code from the talk.  (If you’re wondering, yes, I’ve upgraded the code to use .NET Core 2.1.)

Get Good at DevOps: Feature Flag Deployments with ASP.NET & WebAPI

Want to get good at DevOps but deployments are getting you down? Is the code integration process just plain driving you crazy? Well, maybe it’s time to try out feature flags (aka. “feature toggles”). Feature flags are how sites like Visual Studio Team Services, Bing, Google, and Facebook do their deployments – and frankly, it makes their lives a lot easier than yours.

The idea is simple. Write a feature (or version of a feature) so that you can turn it on/off using a configuration setting. That one little design decision simplifies your deployments and lets you do a whole lot of different things like private betas, A/B testing, and feature rollbacks. But best of all, a whole lot less stress because you simply stop worrying so much about how you integrate your code.

Great. So how do you do this with ASP.NET, WebAPI, and JavaScript? Well, it’s not always easy. In this session, Ben will discuss why you should care about Feature Flags, what it lets you do, how it’ll help your Scrum teams, and also show you how to actually implement them in your applications.

Once again, here are the slides and the code.  


— Need some help with your software architecture?  Trying to adopt feature flags but you’re not sure how or where to start?  Running into Scrum problems related to technical debt or feature flag debt?  We can help.  Drop us a line at


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