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4 changes: 2 additions & 2 deletions FaceTutorialCS/FaceTutorialCS/MainWindow.xaml.cs
Original file line number Diff line number Diff line change
Expand Up @@ -19,9 +19,9 @@ public partial class MainWindow : Window
{
// <snippet_mainwindow_fields>
// Add your Face subscription key to your environment variables.
private const string subscriptionKey = Environment.GetEnvironmentVariable("FACE_SUBSCRIPTION_KEY");
private static readonly string subscriptionKey = Environment.GetEnvironmentVariable("FACE_SUBSCRIPTION_KEY");
// Add your Face endpoint to your environment variables.
private const string faceEndpoint = Environment.GetEnvironmentVariable("FACE_ENDPOINT");
private static readonly string faceEndpoint = Environment.GetEnvironmentVariable("FACE_ENDPOINT");

private readonly IFaceClient faceClient = new FaceClient(
new ApiKeyServiceClientCredentials(subscriptionKey),
Expand Down