diff --git a/Newsbot.Collector.Api/Controllers/v1/UserController.cs b/Newsbot.Collector.Api/Controllers/v1/UserController.cs
index 9125463..04285b3 100644
--- a/Newsbot.Collector.Api/Controllers/v1/UserController.cs
+++ b/Newsbot.Collector.Api/Controllers/v1/UserController.cs
@@ -2,6 +2,7 @@ using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Newsbot.Collector.Api.Authentication;
+using Newsbot.Collector.Api.Middleware;
 using Newsbot.Collector.Domain.Entities;
 using Newsbot.Collector.Domain.Interfaces;
 
diff --git a/Newsbot.Collector.Api/Middleware/JwtUserIdExtension.cs b/Newsbot.Collector.Api/Middleware/JwtUserIdExtension.cs
index 80c0e09..041440a 100644
--- a/Newsbot.Collector.Api/Middleware/JwtUserIdExtension.cs
+++ b/Newsbot.Collector.Api/Middleware/JwtUserIdExtension.cs
@@ -1,14 +1,9 @@
-namespace Newsbot.Collector.Api.Authentication;
+namespace Newsbot.Collector.Api.Middleware;
 
 public static class JwtUserIdExtension
 {
     public static string GetUserId(this HttpContext context)
     {
-        if (context.User == null)
-        {
-            return string.Empty;
-        }
-
         return context.User.Claims.Single(x => x.Type == "id").Value;
     }
 }
\ No newline at end of file
diff --git a/Newsbot.Collector.Api/Newsbot.Collector.Api.csproj b/Newsbot.Collector.Api/Newsbot.Collector.Api.csproj
index 969a610..76badf8 100644
--- a/Newsbot.Collector.Api/Newsbot.Collector.Api.csproj
+++ b/Newsbot.Collector.Api/Newsbot.Collector.Api.csproj
@@ -4,6 +4,8 @@
         <TargetFramework>net7.0</TargetFramework>
         <Nullable>enable</Nullable>
         <ImplicitUsings>enable</ImplicitUsings>
+
+        <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     </PropertyGroup>
 
     <ItemGroup>
diff --git a/Newsbot.Collector.Api/Program.cs b/Newsbot.Collector.Api/Program.cs
index e3ae5fc..f35dbc3 100644
--- a/Newsbot.Collector.Api/Program.cs
+++ b/Newsbot.Collector.Api/Program.cs
@@ -35,7 +35,7 @@ GlobalConfiguration.Configuration.UseSerilogLogProvider();
 
 // Build Health Checks
 builder.Services.AddHealthChecks()
-    .AddNpgSql(config.GetValue<string>(ConfigConnectionStringConst.Database) ?? "");
+    .AddNpgSql(config.GetValue<string>(ConfigConst.ConnectionStringDatabase) ?? "");
 
 
 builder.Services.AddControllers();
@@ -109,7 +109,7 @@ static IConfiguration GetConfiguration()
 
 static ILogger GetLogger(IConfiguration configuration)
 {
-    var otel = configuration.GetValue<string>(ConfigConnectionStringConst.OpenTelemetry) ?? "";
+    var otel = configuration.GetValue<string>(ConfigConst.ConnectionStringOpenTelemetry) ?? "";
 
     if (otel == "")
         return Log.Logger = new LoggerConfiguration()
diff --git a/Newsbot.Collector.Api/Startup/DatabaseStartup.cs b/Newsbot.Collector.Api/Startup/DatabaseStartup.cs
index 04495ae..f5f60c3 100644
--- a/Newsbot.Collector.Api/Startup/DatabaseStartup.cs
+++ b/Newsbot.Collector.Api/Startup/DatabaseStartup.cs
@@ -1,10 +1,10 @@
 using Microsoft.AspNetCore.Identity;
 using Microsoft.EntityFrameworkCore;
 using Newsbot.Collector.Api.Domain;
-using Newsbot.Collector.Api.Services;
 using Newsbot.Collector.Database;
 using Newsbot.Collector.Database.Repositories;
 using Newsbot.Collector.Domain.Interfaces;
+using Newsbot.Collector.Services;
 
 namespace Newsbot.Collector.Api.Startup;