WIP: Resolve all code issues

WebAPI/Controllers/PingController.cs

@@ -1,15 +1,5 @@
-using Google.Apis.Auth;
-using Google.Apis.Http;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Identity.Client.Platforms.Features.DesktopOs.Kerberos;
-using Microsoft.IdentityModel.Tokens;
-using System.Configuration;
-using System.IdentityModel.Tokens.Jwt;
-using System.Security.Claims;
-using System.Text;
-using WebAPI.Models;
 
 namespace WebAPI.Controllers
 {
@@ -18,11 +8,11 @@ namespace WebAPI.Controllers
     [Authorize]
     public class PingController : Controller
     {
-        private readonly IConfiguration configuration;
+        private readonly IConfiguration _configuration;
         public PingController(
-        IConfiguration _configuration)
+        IConfiguration configuration)
         {
-            configuration = _configuration;
+            _configuration = configuration;
         }
 
         [HttpGet]
@@ -30,7 +20,7 @@ namespace WebAPI.Controllers
         [AllowAnonymous]
         public IActionResult Ping()
         {
-            return Ok(configuration["PONG"]);
+            return Ok(_configuration["PONG"]);
         }
     }
 }