src/GameIdeas/GameIdeas.Shared/Exceptions/EnvironmentVariableMissingException.cs

@@ -0,0 +1,3 @@
+namespace GameIdeas.Shared.Exceptions;
+
+public class EnvironmentVariableMissingException(string message) : Exception(message);

src/GameIdeas/Server/GameIdeas.WebAPI/Extensions/ServiceCollectionExtension.cs

@@ -0,0 +1,47 @@
+using GameIdeas.Shared.Exceptions;
+using GameIdeas.Shared.Options;
+
+namespace GameIdeas.WebAPI.Extensions;
+
+public static class ServiceCollectionExtension
+{
+    public static IServiceCollection AddGameIdeasOptions(this IServiceCollection services)
+    {
+#if DEBUG
+        var dictionary = LoadEnvironmentVariable("../../../../.env");
+#else
+        var dictionary = LoadEnvironmentVariable("../.env");
+#endif
+        
+        services.Configure<GameIdeasOptions>(options =>
+        {
+            options.DbHost = GetEnvVar("DB_HOST", dictionary);
+            options.DbUsername = GetEnvVar("DB_USERNAME", dictionary);
+            options.DbPassword = GetEnvVar("DB_PASSWORD", dictionary);
+            options.DbDatabase = GetEnvVar("DB_DATABASE", dictionary);
+            options.JwtKey = GetEnvVar("JWT_KEY", dictionary);
+            options.JwtIssuer = GetEnvVar("JWT_ISSUER", dictionary);
+            options.JwtAudience = GetEnvVar("JWT_AUDIENCE", dictionary);
+        });
+        
+        return services;
+    }
+
+    private static string GetEnvVar(string name, Dictionary<string, string> dictionary)
+    {
+        return Environment.GetEnvironmentVariable(name) 
+            ?? dictionary.GetValueOrDefault(name) 
+            ?? throw new EnvironmentVariableMissingException($"Missing environment variable with key: {name}");
+    }
+    
+    private static Dictionary<string, string> LoadEnvironmentVariable(string filePath)
+    {
+        if (!File.Exists(filePath))
+            return [];
+
+        return File.ReadAllLines(filePath)
+            .Select(line => line.Split('=', StringSplitOptions.RemoveEmptyEntries))
+            .Where(parts => parts.Length == 2)
+            .ToDictionary(parts => parts[0], parts => parts[1]);
+    }
+}

src/GameIdeas/Server/GameIdeas.WebAPI/GameIdeas.WebAPI.csproj

@@ -28,8 +28,4 @@
     <ProjectReference Include="..\..\GameIdeas.Shared\GameIdeas.Shared.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="Extensions\" />
-  </ItemGroup>
-
 </Project>

src/GameIdeas/Server/GameIdeas.WebAPI/Program.cs

@@ -10,37 +10,18 @@ using Microsoft.AspNetCore.Identity;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.IdentityModel.Tokens;
 using System.Text;
+using GameIdeas.WebAPI.Extensions;
 
 var builder = WebApplication.CreateBuilder(args);
 var services = builder.Services;
 
-#if DEBUG
-LoadEnvironmentVariable("../../../../.env");
-#else
-LoadEnvironmentVariable("../.env");
-#endif
-
-Action<DbContextOptionsBuilder> dbContextOptions = options =>
-{
-    options.UseNpgsql(
-        GetConnectionString(),
-        npgOption =>
-        {
-            npgOption.CommandTimeout(60);
-            npgOption.MigrationsAssembly("GameIdeas.WebAPI");
-        });
-};
-
-// Add services to the container.
-services.AddDbContext<GameIdeasContext>(dbContextOptions);
+services.AddGameIdeasOptions();
+services.AddDbContext<GameIdeasContext>(ContextOptions);
 
 services.AddIdentity<User, IdentityRole>()
     .AddEntityFrameworkStores<GameIdeasContext>()
     .AddDefaultTokenProviders();
 
-var jwtKey = Environment.GetEnvironmentVariable("JWT_KEY")
-    ?? throw new ArgumentNullException(message: "Invalid key for JWT token", null);
-
 services.AddAuthentication(options =>
 {
     options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
@@ -86,7 +67,6 @@ services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());
 
 services.AddControllers();
 
-// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
 services.AddOpenApi();
 
 services.AddCors(option => option.AddDefaultPolicy(policy =>
@@ -118,6 +98,16 @@ app.UseAuthorization();
 app.MapControllers();
 
 app.Run();
+return;
+
+void ContextOptions(DbContextOptionsBuilder options)
+{
+    options.UseNpgsql(GetConnectionString(), npgOption =>
+    {
+        npgOption.CommandTimeout(60);
+        npgOption.MigrationsAssembly("GameIdeas.WebAPI");
+    });
+}
 
 async Task LoadTranslations()
 {
@@ -145,21 +135,3 @@ string GetConnectionString()
 
     return $"Host={host};Username={login};Password={pass};Database={database}";
 }
-
-static void LoadEnvironmentVariable(string filePath)
-{
-    if (!File.Exists(filePath))
-        return;
-
-    foreach (var line in File.ReadAllLines(filePath))
-    {
-        var parts = line.Split(
-            '=',
-            StringSplitOptions.RemoveEmptyEntries);
-
-        if (parts.Length != 2)
-            continue;
-
-        Environment.SetEnvironmentVariable(parts[0], parts[1]);
-    }
-}

src/GameIdeas/Server/GameIdeas.WebAPI/Services/Users/UserReadService.cs

@@ -11,12 +11,15 @@ using System.IdentityModel.Tokens.Jwt;
 using System.Security.Claims;
 using System.Text;
 using GameIdeas.Shared.Exceptions;
+using GameIdeas.Shared.Options;
+using Microsoft.Extensions.Options;
 
 namespace GameIdeas.WebAPI.Services.Users;
 
 public class UserReadService(
     UserManager<User> userManager,
     GameIdeasContext context,
+    IOptions<GameIdeasOptions> options,
     IMapper mapper) : IUserReadService
 {
     public async Task<IEnumerable<RoleDto>> GetRoles()
@@ -125,14 +128,11 @@ public class UserReadService(
         authClaims.AddRange((await userManager.GetRolesAsync(user))
             .Select(r => new Claim(ClaimTypes.Role, r)));
 
-        var jwtKey = Environment.GetEnvironmentVariable("JWT_KEY")
-            ?? throw new ArgumentNullException(message: ResourcesKey.InvalidToken, null);
-
-        var authSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jwtKey));
+        var authSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(options.Value.JwtKey));
 
         var token = new JwtSecurityToken(
-            issuer: Environment.GetEnvironmentVariable("JWT_ISSUER"),
-            audience: Environment.GetEnvironmentVariable("JWT_AUDIENCE"),
+            issuer: options.Value.JwtIssuer,
+            audience: options.Value.JwtAudience,
             expires: DateTime.Now.AddHours(GlobalConstants.JWT_DURATION_HOUR),
             claims: authClaims,
             signingCredentials: new SigningCredentials(authSigningKey, SecurityAlgorithms.HmacSha256)