Merge pull request #45 from Purdue-ACM-SIGAPP/secret-missing-error

Add error message if user secret is missing

Services/MongoDbService.cs

@@ -17,12 +17,24 @@ public class MongoDbService
     public MongoDbService(IConfiguration configuration)
     {
         _configuration = configuration;
-
+        
         var connectionString = _configuration.GetConnectionString("DbConnection");
         var databaseName = _configuration.GetConnectionString("DatabaseName");
+
+        if (connectionString == null)
+        {
+            Console.WriteLine("\x1b[38;2;255;000;000m");
+            Console.WriteLine("Error: connection URL secret is missing.");
+            Console.WriteLine("Run the command in the Discord starting with");
+            Console.WriteLine("'dotnet user-secrets', then try again.");
+
+            Environment.Exit(1);
+        }
+
         Console.WriteLine("connection information:");
         Console.WriteLine(connectionString);
         Console.WriteLine(databaseName);
+
         var mongoUrl = MongoUrl.Create(connectionString);
         var mongoClient = new MongoClient(mongoUrl);
         _database = mongoClient.GetDatabase(databaseName);