> For the complete documentation index, see [llms.txt](https://docs.uqudo.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.uqudo.com/docs/kyc/uqudo-sdk/integration/dotnet/face-session-flow.md).

# Face Session Flow

**Android**

Add the following code at the start-up of your application to initialise the SDK:

```csharp
IO.Uqudo.Sdk.Core.UqudoSDK.Init(this);
```

Below you can find an example on how to initiate the face session process:

```csharp
var faceSessionConfiguration = new IO.Uqudo.Sdk.Core.UqudoBuilder.FaceSession();
faceSessionConfiguration.SetSessionId("<your session identifier>");
faceSessionConfiguration.SetToken("<your token>");
StartActivityForResult(faceSessionConfiguration.Build(this), 100);
...
protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data) {
   	base.OnActivityResult(requestCode, resultCode, data);
   if (requestCode == 100) {
 	Console.WriteLine("JWS result" + data.GetStringExtra("data"));
   }
}
```

In order to evaluate all the possible options please refer to section [Face Session Flow](/docs/kyc/uqudo-sdk/integration/android/face-session-flow.md). The C# interface is the porting of the JAVA one.

**iOS**

Add the following code at the start-up of your application to initialise the SDK:

```csharp
using UqudoSDK;
...
{
[Register("AppDelegate")]
public class AppDelegate : UIResponder, IUIApplicationDelegate
...
[Export("application:didFinishLaunchingWithOptions:")]
public bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
{
  new UQBuilderController();
  return true;
}
```

Below you can find an example on how to initiate the face session process:

```csharp
var builderController = UQBuilderController.DefaultBuilder();
builderController.AppViewController = this;
builderController.Delegate = new UqudoBuilderControllerDelegate();
var faceSessionConfiguration = new UQFaceSessionBuilder();
faceSessionConfiguration.AppViewController = this;
faceSessionConfiguration.SessionId = "<your session identifier>";
faceSessionConfiguration.AuthorizationToken = "<your token>";
builderController.SetFaceSession(faceSessionConfiguration);
builderController.PerformFaceSession();
```

UqudoBuilderControllerDelegate.cs

```csharp
using UqudoSDK;
...

namespace <Your Project Namespace>
{
	public class UqudoBuilderControllerDelegate : UQBuilderControllerDelegate
	{
	
    	public UqudoBuilderControllerDelegate()
    	{
    	}
    
        public override void DidFaceSessionCompleteWithInfo(string info)
        {
            System.Diagnostics.Debug.WriteLine(info);
        }
    
        public override void DidFaceSessionIncompleteWithStatus(UQSessionStatus status)
        {
            System.Diagnostics.Debug.WriteLine(status);
        }
    
	}
}
```

\
In order to evaluate all the possible options please refer to section [Face Session Flow](/docs/kyc/uqudo-sdk/integration/ios/face-session-flow.md). The C# interface is binding to the Objective-C one.

**Android and iOS**

To handle the result check the Android documentation "[Handling the Result](/docs/kyc/uqudo-sdk/integration/android/face-session-flow.md#handling-the-result)" for Android and the iOS documentation "[Handling the Result](/docs/kyc/uqudo-sdk/integration/ios/face-session-flow.md#handling-the-result)" for iOS.