static async Task RecognizeAsync()

in documentation-samples/tutorial-speech-intent-recognition/csharp/Program.cs [22:88]
43 lines of code
6 McCabe index (conditional complexity)

        static async Task RecognizeAsync()
        {

            string LUIS_assigned_endpoint_key = "<LUIS-assigned-resource-key>";
            string LUIS_endpoint_key_region = "westus";
            string LUIS_app_ID = "<LUIS-app-ID>";

            // Creates an instance of a speech config with specified subscription key
            // and service region. Note that in contrast to other services supported by
            // the Cognitive Services Speech SDK, the Language Understanding service
            // requires a specific subscription key from https://www.luis.ai/.
            // The Language Understanding service calls the required key 'endpoint key'.
            // Once you've obtained it, replace with below with your own Language Understanding subscription key
            // and service region (e.g., "westus").
            // The default language is "en-us".
            var config = SpeechConfig.FromSubscription(LUIS_assigned_endpoint_key, LUIS_endpoint_key_region);

            // Creates an intent recognizer using microphone as audio input.
            using (var recognizer = new IntentRecognizer(config))
            {
                // Creates a Language Understanding model using the app id, and adds specific intents from your model
                var model = LanguageUnderstandingModel.FromAppId(LUIS_app_ID);

                // Add intents from HumanResources.json to your intent recognizer
                recognizer.AddIntent(model, "None", "None");
                recognizer.AddIntent(model, "FindForm", "FindForm");
                recognizer.AddIntent(model, "GetEmployeeBenefits", "GetEmployeeBenefits");
                recognizer.AddIntent(model, "GetEmployeeOrgChart", "GetEmployeeOrgChart");
                recognizer.AddIntent(model, "MoveAssetsOrPeople", "MoveAssetsOrPeople");

                // Starts recognizing.
                Console.WriteLine("Say something...");

                // Performs recognition. RecognizeOnceAsync() returns when the first utterance has been recognized,
                // so it is suitable only for single shot recognition like command or query. For long-running
                // recognition, use StartContinuousRecognitionAsync() instead.
                var result = await recognizer.RecognizeOnceAsync().ConfigureAwait(false);

                // Checks result.
                if (result.Reason == ResultReason.RecognizedIntent)
                {
                    Console.WriteLine($"RECOGNIZED: Text={result.Text}");
                    Console.WriteLine($"    Intent Id: {result.IntentId}.");
                    Console.WriteLine($"    Language Understanding JSON: {result.Properties.GetProperty(PropertyId.LanguageUnderstandingServiceResponse_JsonResult)}.");
                }
                else if (result.Reason == ResultReason.RecognizedSpeech)
                {
                    Console.WriteLine($"RECOGNIZED: Text={result.Text}");
                    Console.WriteLine($"    Intent not recognized.");
                }
                else if (result.Reason == ResultReason.NoMatch)
                {
                    Console.WriteLine($"NOMATCH: Speech could not be recognized.");
                }
                else if (result.Reason == ResultReason.Canceled)
                {
                    var cancellation = CancellationDetails.FromResult(result);
                    Console.WriteLine($"CANCELED: Reason={cancellation.Reason}");

                    if (cancellation.Reason == CancellationReason.Error)
                    {
                        Console.WriteLine($"CANCELED: ErrorDetails={cancellation.ErrorDetails}");
                        Console.WriteLine($"CANCELED: Did you update the subscription info?");
                    }
                }
            }
        }