2 posts tagged with ".NET Core"

ASP.NET Core APIs often need to change behavior without requiring a new deployment. You might want to release functionality to a small group of users, make a feature available only to certain subscription tiers, or quickly disable a problematic change.

Feature flags make this possible by letting you change behavior remotely without modifying and redeploying your code.

In this tutorial, we'll build a simple ASP.NET Core Web API and use a ConfigCat feature flag to control if it returns a two-day or five-day weather forecast. Then, we'll add a targeting rule so only users on a premium subscription receive the full forecast.

In this post, I'll investigate integrating ConfigCat's feature management system with an ASP.NET Core 8 Web API Service and the Options<T> pattern. We'll also leverage the built-in polling mechanism of the ConfigCat client library to refresh feature flags' states during the application's runtime. Let's get started!