Feature Flags created by developers for developers with ❤️.
ConfigCat lets you manage feature flags across frontend, backend, mobile, and desktop apps without (re)deploying code. % rollouts, user targeting, segmentation. Feature toggle SDKs for all main languages. Alternative to LaunchDarkly.
Host yourself, or use the hosted management app at https://configcat.com.
Works with .NET, .NET Core, .NET Standard
Other runtimes which implement .NET Standard 2.0+ like .NET Core 2.0+, Xamarin.Android 8.0+, Xamarin.iOS 10.14+, etc. (For more details, please refer to this table.)
Starting with v9.3.0, the ConfigCat SDK can be used in applications that employ trimmed self-contained or various ahead-of-time (AOT) compilation deployment models.
The SDK has been tested with the following AOT solutions:
ConfigCat SDK for .NET provides easy integration for your application to ConfigCat.
ConfigCat is a feature flag and configuration management service that lets you separate releases from deployments. You can turn your features ON/OFF using even after they are deployed. ConfigCat lets you target specific groups of users based on region, email or any other custom user attribute.
var client = ConfigCatClient.Get("#YOUR-SDK-KEY#");
You can acquire singleton client instances for your SDK keys using the ConfigCatClient.Get(sdkKey: <sdkKey>) static factory method.
(However, please keep in mind that subsequent calls to ConfigCatClient.Get() with the same SDK Key return a shared client instance, which was set up by the first call.)
To ensure graceful shutdown of the client you should invoke .Dispose() method. (Client implements IDisposable interface.)
Alternatively, you can also close all open clients at once using the ConfigCatClient.DisposeAll() method.
Getting user specific setting values with Targeting
Using this feature, you will be able to get different setting values for different users in your application by passing a User Object to the GetValue() function.
User currentUser = new User("435170f4-8a8b-4b67-a723-505ac7cdea92");
var isMyAwesomeFeatureEnabled = await client.GetValueAsync(
"isMyAwesomeFeatureEnabled",
defaultValue: false,
user: currentUser);
The ConfigCat SDK supports 3 different polling mechanisms to acquire the setting values from ConfigCat. After latest setting values are downloaded, they are stored in the internal cache then all requests are served from there. Read more about Polling Modes and how to use them at ConfigCat Docs.
