Merge pull request #148 from v-jaswel/patch-9

[Text Analytics] Update to get endpoint and subscription key from env vars

Author: yangyuan

samples/TextAnalytics/synchronous/Program.cs

@@ -1,4 +1,4 @@
-// <imports>
+// <imports>
 using System;
 using System.Collections.Generic;
 using System.Net.Http;
@@ -13,51 +13,90 @@ namespace text_analytics_quickstart
 {
     class Program
     {
+        private const string key_var = "TEXT_ANALYTICS_SUBSCRIPTION_KEY";
+        private static readonly string subscriptionKey = Environment.GetEnvironmentVariable(key_var);
+
+        private const string endpoint_var = "TEXT_ANALYTICS_ENDPOINT";
+        private static readonly string endpoint = Environment.GetEnvironmentVariable(endpoint_var);
+
+        static Program()
+        {
+            if (null == subscriptionKey)
+            {
+                throw new Exception("Please set/export the environment variable: " + key_var);
+            }
+            if (null == endpoint)
+            {
+                throw new Exception("Please set/export the environment variable: " + endpoint_var);
+            }
+        }
+
         // <main>
         static void Main(string[] args)
         {
             Console.OutputEncoding = System.Text.Encoding.UTF8;
-            string location = "westus2";
-            string endpoint = $"https://{location}.api.cognitive.microsoft.com";
-            //This sample assumes you have created an environment variable for your key
-            string key = Environment.GetEnvironmentVariable("TEXTANALYTICS_SUBSCRIPTION_KEY");
-            ITextAnalyticsClient client = new TextAnalyticsClient(new ApiKeyServiceClientCredentials(key));
-            
+            var credentials = new ApiKeyServiceClientCredentials(subscriptionKey);
+            TextAnalyticsClient client = new TextAnalyticsClient(credentials)
+            {
+                Endpoint = endpoint
+            };
+
             SentimentAnalysisExample(client);
-            // languageDetectionExample(client);
-            // RecognizeEntitiesExample(client);
-            // KeyPhraseExtractionExample(client);
-            Console.ReadLine();
+            languageDetectionExample(client);
+            entityRecognitionExample(client);
+            KeyPhraseExtractionExample(client);
+            Console.Write("Press any key to exit.");
+            Console.ReadKey();
         }
         // </main>
 
         // <sentiment>
-        static void SentimentAnalysisExample(ITextAnalyticsClient client){
+        static void SentimentAnalysisExample(ITextAnalyticsClient client)
+        {
             var result = client.Sentiment("I had the best day of my life.", "en");
             Console.WriteLine($"Sentiment Score: {result.Score:0.00}");
         }
         // <sentiment>
 
         // <language-detection>
-        static void languageDetectionExample(ITextAnalyticsClient client){
+        static void languageDetectionExample(ITextAnalyticsClient client)
+        {
             var result = client.DetectLanguage("This is a document written in English.");
             Console.WriteLine($"Language: {result.DetectedLanguages[0].Name}");
         }
         // </language-detection>
 
         // <entity-recognition>
-        static void entityRecognitionExample(ITextAnalyticsClient client){
-            
+        static void entityRecognitionExample(ITextAnalyticsClient client)
+        {
+
             var result = client.Entities("Microsoft was founded by Bill Gates and Paul Allen on April 4, 1975, to develop and sell BASIC interpreters for the Altair 8800.");
             Console.WriteLine("Entities:");
-            foreach (var entity in result.Entities){
+            foreach (var entity in result.Entities)
+            {
                 Console.WriteLine($"\tName: {entity.Name},\tType: {entity.Type ?? "N/A"},\tSub-Type: {entity.SubType ?? "N/A"}");
-                foreach (var match in entity.Matches){
+                foreach (var match in entity.Matches)
+                {
                     Console.WriteLine($"\t\tOffset: {match.Offset},\tLength: {match.Length},\tScore: {match.EntityTypeScore:F3}");
                 }
             }
         }
         // </entity-recognition>
+
+        // <key-phrase-extraction>
+        static void KeyPhraseExtractionExample(TextAnalyticsClient client)
+        {
+            var result = client.KeyPhrases("My cat might need to see a veterinarian.");
+
+            // Printing key phrases
+            Console.WriteLine("Key phrases:");
+
+            foreach (string keyphrase in result.KeyPhrases)
+            {
+                Console.WriteLine($"\t{keyphrase}");
+            }
+        }
+        // </key-phrase-extraction>
     }
 
     // <client-class>