public HomeController(ILogger <HomeController> logger, IFeatureFlagClient featureFlagClient)
{
_logger = logger;
//FeatureFlagFramework - Dependency Injection Client Retrieval
this.featureFlagClientDependencyInjection = featureFlagClient;
//FeatureFlagFramework - Service Locator Client Retrieval
this.featureFlagClientServiceLocator = JsonTogglerFrameworkClient.Instance;
}
static void Main(string[] args)
{
var clientKey = ConfigurationManager.AppSettings[FeatureFlagFramework.Clients.LaunchDarkly.Constants.ClientKeyName];
//FeatureFlagFramework - Instantiation with Custom Configuration used with Dependency Injection library of your choice
IFeatureFlagClient featureFlagClientDependencyInjection = new LaunchDarklyFrameworkClient(new FeatureFlagClientSettings()
{
ClientKey = clientKey
});
//FeatureFlagFramework - Service Locator
IFeatureFlagClient featureFlagClientServiceLocator = LaunchDarklyFrameworkClient.Instance;
//FeatureFlagFramework - Service Locator Configuration
//You don't need to set the key using the below if using the default AppSetting key names
//FeatureFlagClientDefaultSettings.SetClientKey(Constants.ClientKeyName, clientKey);
//FeatureFlagFramework - Factory to toggle between clients (e.g. between LaunchDarkly and FeatureFlow whilst evaluating clients)
IFeatureFlagClient featureFlagClientFactory = FeatureFlagFramework.ClientFactory.Instance;
while (true)
{
if (featureFlagClientDependencyInjection.Evaluate("example-feature-flag", false))
{
Console.WriteLine(featureFlagClientDependencyInjection.GetType().ToString() + " with Instantiation True");
}
else
{
Console.WriteLine(featureFlagClientDependencyInjection.GetType().ToString() + " with Instantiation False");
}
if (featureFlagClientServiceLocator.Evaluate("example-feature-flag", false))
{
Console.WriteLine(featureFlagClientServiceLocator.GetType().ToString() + " with Service Locator True");
}
else
{
Console.WriteLine(featureFlagClientServiceLocator.GetType().ToString() + " with Service Locator False");
}
if (featureFlagClientFactory.Evaluate("example-feature-flag", false))
{
Console.WriteLine(featureFlagClientFactory.GetType().ToString() + " with Flagging Factory True");
}
else
{
Console.WriteLine(featureFlagClientFactory.GetType().ToString() + " with Flagging Factory False");
}
Thread.Sleep(500);
}
}
public static bool IsEnabled(
this IFeatureFlagClient client,
string flight,
User user,
bool defaultValue)
{
if (user == null)
{
throw new ArgumentNullException(nameof(user));
}
return(client.IsEnabled(flight, new FlightUser(user), defaultValue));
}
public static bool IsEnabled(
this IFeatureFlagClient client,
string flight,
User user,
bool defaultValue)
{
// The user object is null if the user isn't logged in.
var flightUser = (user != null)
? new FlightUser(user)
: null;
return(client.IsEnabled(flight, flightUser, defaultValue));
}
public FeatureFlagService(IFeatureFlagClient client)
{
_client = client ?? throw new ArgumentNullException(nameof(client));
}
