Minor fixes to remove issues

MainProject/Controllers/AuthController.cs

@@ -11,7 +11,7 @@ namespace BasicDotnetTemplate.MainProject.Controllers
     [Route("[controller]")]
     public class AuthController : BaseController
     {
-        private IAuthService _authService;
+        private readonly IAuthService _authService;
         public AuthController(
             IConfiguration configuration,
             IAuthService authService
@@ -29,6 +29,11 @@ namespace BasicDotnetTemplate.MainProject.Controllers
         {
             try
             {
+                if (!ModelState.IsValid)
+                {
+                    return BadRequest("Request is not well formed");
+                }
+
                 if (
                     request == null ||
                     request.Data == null ||
@@ -50,9 +55,9 @@ namespace BasicDotnetTemplate.MainProject.Controllers
             catch (Exception exception)
             {
                 var message = "Something went wrong";
-                if (!String.IsNullOrEmpty(exception?.Message))
+                if (!String.IsNullOrEmpty(exception.Message))
                 {
-                    message += $". {exception?.Message}";
+                    message += $". {exception.Message}";
                 }
                 return InternalServerError(message);
             }

MainProject/Utils/ProgramUtils.cs

@@ -12,6 +12,7 @@ namespace BasicDotnetTemplate.MainProject.Utils;
 
 public static class ProgramUtils
 {
+    private static readonly string[] _newStringArray = Array.Empty<string>();
     private static readonly NLog.Logger Logger = NLog.LogManager.GetCurrentClassLogger();
 
     public static AppSettings AddConfiguration(ref WebApplicationBuilder builder, string? path = "", string? filename = "")
@@ -112,7 +113,7 @@ public static class ProgramUtils
                             Id = "Bearer"
                         }
                     },
-                    new string[] {}
+                    _newStringArray
                 },
                 {
                     new OpenApiSecurityScheme
@@ -123,7 +124,7 @@ public static class ProgramUtils
                             Id = "ApiKey"
                         }
                     },
-                    new string[] {}
+                    _newStringArray
                 }
             });
         });