Unlaunch .NET SDK

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Overview

The Unlaunch .NET SDK provides .NET Framework or .NET Core API to access Unlaunch feature flags and other features. Using the SDK, you can easily build .NET applications that can evaluate feature flags, dynamic configurations, and more.

Important Links

• To create feature flags to use with .NET SDK, login to your Unlaunch Console at https://app.unlaunch.io
• Official Guide
• Nuget

Compatibility

.NET Framework 4.5+ and .NET Core 2.0+

This is a server-side SDK

This SDK is server-side and should be used in applications that you run on your own servers such as backend services or web servers. For more information, see this.

Getting Started

Here is a simple example.

First import the SDK using Nuget.

Install-Package unlaunch -Version 1.0.0

Here's an example showing how you'd use Unlaunch .NET SDK in your application.

using System;
using io.unlaunch;

namespace your.namespace
{
    class Program
    {
        static void Main(string[] args)
        {
            // initialize the client
            var client = UnlaunchClient.Create("INSERT_YOUR_SDK_KEY");

            // wait for the client to be ready
            try
            {
                client.AwaitUntilReady(TimeSpan.FromSeconds(2));
            }
            catch (TimeoutException e) {
                Console.WriteLine("client wasn't ready " + e.Message);
            }
            
            // get variation
            var variation = client.GetVariation("flagKey", "userId123");

            // take action based on the returned variation
            if (variation == "on")
            {
                Console.WriteLine("Variation is on");
            }
            else if (variation == "off")
            {
                Console.WriteLine("Variation is off");
            }
            else
            {
                Console.WriteLine("control variation");
            }

            // If you attached (key-value) configuration to your feature flag variations, 
            // here's how you can retrieve it:
            var feature = client.GetFeature("new_login_ui", "userId");
            var colorHexCode = feature.GetVariationConfig().GetString("login_btn_clr", "#cd5c5c");

            // shutdown the client to flush any events or metrics 
            client.Shutdown();
        }
    }
}

Singleton in web application

var unlaunchClient = UnlaunchClient.Create("INSERT_YOUR_SDK_KEY");
builder.Register(c => unlaunchClient).As<IUnlaunchClient>().SingleInstance();

Customization

You can use builder to customize the client. For more information, see the official guide.

var client = UnlaunchClient.Builder()
                .SdkKey("INSERT_YOUR_SDK_KEY")
                .PollingIntervalInSeconds(TimeSpan.FromSeconds(60))
                .EventsFlushIntervalInSeconds(TimeSpan.FromSeconds(30))
                .EventsQueueSize(500)
                .MetricsFlushIntervalInSeconds(TimeSpan.FromSeconds(30))
                .MetricsQueueSize(100)
                .Build();

License

Licensed under the Apache License, Version 2.0. See: Apache License.