Backend login and register

src/API/API.csproj

@@ -4,6 +4,7 @@
         <TargetFramework>net10.0</TargetFramework>
         <Nullable>enable</Nullable>
         <ImplicitUsings>enable</ImplicitUsings>
+        <UserSecretsId>9c947c10-2373-4590-92a9-e5fe6b759c69</UserSecretsId>
         <SpaRoot>..\ClientApp\</SpaRoot>
         <SpaProxyServerUrl>http://localhost:44492</SpaProxyServerUrl>
         <SpaProxyLaunchCommand>npm start</SpaProxyLaunchCommand>
@@ -16,4 +17,8 @@
         <PackageReference Include="Swashbuckle.AspNetCore.SwaggerUI" Version="10.1.2" />
     </ItemGroup>
 
+    <ItemGroup>
+      <ProjectReference Include="..\Application\Application.csproj" />
+    </ItemGroup>
+
 </Project>

src/API/Controllers/AuthController.cs

@@ -0,0 +1,45 @@
+using API.Extension;
+using Application.DTOs;
+using Application.Interfaces;
+using Application.Models;
+using Microsoft.AspNetCore.Mvc;
+
+namespace API.Controllers;
+
+public class AuthController(IAuthenticationService authService) : BaseApiController
+{
+    [HttpPost("register")]
+    public async Task<IResult> Register(RegisterRequest registerRequest)
+    {
+        var response = await authService.RegisterAsync(registerRequest);
+        return response.ToHttpResponse();
+    }
+
+    [HttpPost("login")]
+    public async Task<IResult> Login(LoginRequest loginRequest)
+    {
+        var response = await authService.LoginAsync(loginRequest);
+        return response.ToHttpResponse();
+    }
+
+    [HttpPost("refresh-token")]
+    public async Task<IResult> RefreshToken(RefreshTokenRequest refreshTokenRequest)
+    {
+        var response = await authService.RefreshTokensAsync(refreshTokenRequest);
+        return response.ToHttpResponse();
+    }
+
+    [HttpPost("send-reset-email/{email}")]
+    public async Task<IResult> SendResetEmail(string email)
+    {
+        var response = await authService.SendResetEmailAsync(email);
+        return response.ToHttpResponse();
+    }
+
+    [HttpPost("reset-password")]
+    public async Task<IResult> ResetPassword(ResetPasswordDto resetPasswordDto)
+    {
+        var response = await authService.ResetPasswordAsync(resetPasswordDto);
+        return response.ToHttpResponse();
+    }
+}

src/API/Controllers/UserController.cs

@@ -0,0 +1,63 @@
+using API.Extension;
+using Application.Interfaces;
+using Application.Models;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace API.Controllers;
+
+public class UserController(IUserService userService) : BaseApiController
+{
+    [Authorize(Roles = "SuperAdmin, Admin")]
+    [HttpGet]
+    public async Task<IResult> GetAllUsers(
+        [FromQuery] int pageNumber = 1,
+        [FromQuery] int pageSize = 10)
+    {
+        var users = await userService.GetAsync(pageNumber, pageSize);
+        return users.ToHttpResponse();
+    }
+
+    [Authorize]
+    [HttpPut]
+    public async Task<IResult> UpdateUser([FromBody] UserUpdateRequest userUpdateRequest)
+    {
+        var result = await userService.UpdateAsync(userUpdateRequest);
+        return result.ToHttpResponse();
+    }
+
+    [Authorize]
+    [HttpDelete("{id}")]
+    public async Task<IResult> DeleteUser(int id)
+    {
+        var currentUserId = int.Parse(User.FindFirst("UserId")!.Value);
+        var result = await userService.DeleteAsync(id, currentUserId);
+        return result.ToHttpResponse();
+    }
+
+    [Authorize]
+    [HttpGet("{id}")]
+    public async Task<IResult> GetUserById(int id)
+    {
+        var user = await userService.GetUserByIdAsync(id);
+        return user.ToHttpResponse();
+    }
+
+    [Authorize(Roles = "SuperAdmin")]
+    [HttpPost("assign-role")]
+    public async Task<IResult> AssignRole([FromBody] AssingRoleRequest roleRequest)
+
+    {
+        var result = await userService.AssignRoleAsync(roleRequest);
+        return result.ToHttpResponse();
+    }
+
+    [Authorize(Roles = "SuperAdmin")]
+    [HttpDelete("revoke-role")]
+    public async Task<IResult> RevokeRole([FromBody] AssingRoleRequest roleRequest)
+    {
+        var result = await userService.RevokeRoleAsync(roleRequest);
+        return result.ToHttpResponse();
+    }
+    
+}

src/API/Extension/ResultExtension.cs

@@ -0,0 +1,32 @@
+using Application.Common.Results;
+
+namespace API.Extension;
+
+public static class ResultExtension
+{
+    public static IResult ToHttpResponse(this Result result)
+    {
+        if (result.IsSuccess) return Results.Ok(result);
+
+        return MapErrorResponse(result.Error, result);
+    }
+
+    public static IResult ToHttpResponse<T>(this Result<T> result)
+    {
+        if (result.IsSuccess)
+            return Results.Ok(result);
+        return MapErrorResponse(result.Error, result);
+    }
+
+    private static IResult MapErrorResponse(Error? error, object result)
+    {
+        return error?.Code switch
+        {
+            ErrorTypeConstant.ValidationError => Results.BadRequest(result),
+            ErrorTypeConstant.NotFound => Results.NotFound(result),
+            ErrorTypeConstant.Forbidden => Results.Forbid(),
+            ErrorTypeConstant.Unauthorized => Results.Unauthorized(),
+            _ => Results.Problem(error?.Message, statusCode: 500)
+        };
+    }
+}

src/API/Extension/ServiceCollectionExtensions.cs

@@ -4,7 +4,8 @@ namespace API.Extension;
 
 public static class ServiceCollectionExtensions
 {
-    public static IServiceCollection AddWebServices(this IServiceCollection services)
+    public static IServiceCollection AddWebServices(this IServiceCollection services,
+        ConfigurationManager builderConfiguration)
     {
         services.AddSwaggerGen(options =>
         {

src/API/Program.cs

@@ -1,4 +1,9 @@
 using API.Extension;
+using Application.Extensions;
+using Infrastructure.Context;
+using Infrastructure.Extensions;
+using Infrastructure.Utilities;
+using Microsoft.EntityFrameworkCore;
 using Microsoft.OpenApi;
 using Swashbuckle.AspNetCore.SwaggerGen;
 
@@ -7,7 +12,18 @@ var builder = WebApplication.CreateBuilder(args);
 // Add services to the container.
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddControllers();
-builder.Services.AddWebServices();
+builder.Services.AddWebServices(builder.Configuration);
+builder.Services.AddInfrastructure(builder.Configuration);
+builder.Services.AddApplication();
+
+// PostgreSql Database for development
+builder.Services.AddDbContext<ApplicationDbContext>(options =>
+{
+    var postgreSqlSettings =
+        builder.Configuration.GetRequiredSection("PostgreSqlSettings").Get<PostgreSqlSettings>();
+    var connectionString = postgreSqlSettings?.ConnectionString;
+    options.UseNpgsql(connectionString);
+});
 
 builder.Services.AddCors(options =>
 {

src/API/appsettings.json

@@ -5,5 +5,18 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "PostgreSqlSettings": {
+    "Database": "template_db",
+    "Username": "natlinux"
+  },
+  "jwt": {
+    "Key": "veryveryveryveryveryveryverysecretkey",
+    "Issuer": "https://localhost:7091",
+    "Audience": "http://localhost:5184"
+  },
+  "EmailSettings": {
+    "SmtpServer": "smtp.gmail.com",
+    "Port": 465
+  }
 }

src/Application/Application.csproj

@@ -6,4 +6,20 @@
         <Nullable>enable</Nullable>
     </PropertyGroup>
 
+    <ItemGroup>
+      <ProjectReference Include="..\Domain\Domain.csproj" />
+      <ProjectReference Include="..\Infrastructure\Infrastructure.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="FluentValidation.DependencyInjectionExtensions" Version="12.1.1" />
+      <PackageReference Include="MailKit" Version="4.14.1" />
+      <PackageReference Include="Microsoft.AspNetCore.Identity" Version="2.3.9" />
+      <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel.Core" Version="2.3.9" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="10.0.2" />
+      <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.2" />
+      <PackageReference Include="MimeKit" Version="4.14.0" />
+      <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="8.15.0" />
+    </ItemGroup>
+
 </Project>

src/Application/Common/Results/Error.cs

@@ -0,0 +1,6 @@
+namespace Application.Common.Results;
+
+public sealed record Error(string Code, string Message)
+{
+    internal static Error None => new(ErrorTypeConstant.None, string.Empty);
+}

src/Application/Common/Results/ErrorTypeConstant.cs

@@ -0,0 +1,11 @@
+namespace Application.Common.Results;
+
+public class ErrorTypeConstant
+{
+    public const string None = "None";
+    public const string ValidationError = "ValidationError";
+    public const string InternalServerError = "InternalServerError";
+    public const string NotFound = "NotFoundError";
+    public const string Unauthorized = "UnauthorizedError";
+    public const string Forbidden = "ForbiddenError";
+}

src/Application/Common/Results/Result.cs

@@ -0,0 +1,37 @@
+namespace Application.Common.Results;
+
+public class Result
+{
+    protected Result(bool isSuccess, Error error)
+    {
+        if ((isSuccess && error != Error.None) || (!isSuccess && error == Error.None))
+            throw new InvalidOperationException("Invalid operation");
+        IsSuccess = isSuccess;
+        Error = error;
+    }
+
+    public bool IsSuccess { get; }
+    public bool IsFailure => !IsSuccess;
+
+    public Error Error { get; }
+
+    public static Result Success()
+    {
+        return new Result(true, Error.None);
+    }
+
+    public static Result<TValue> Success<TValue>(TValue value)
+    {
+        return new Result<TValue>(value, true, Error.None);
+    }
+
+    public static Result Failure(Error error)
+    {
+        return new Result(false, error);
+    }
+
+    public static Result<TValue> Failure<TValue>(Error error)
+    {
+        return new Result<TValue>(default!, false, error);
+    }
+}

src/Application/Common/Results/TResult.cs

@@ -0,0 +1,13 @@
+namespace Application.Common.Results;
+
+public class Result<TValue> : Result
+{
+    private readonly TValue _value;
+
+    protected internal Result(TValue value, bool isSuccess, Error error) : base(isSuccess, error)
+    {
+        _value = value;
+    }
+
+    public TValue Value => IsSuccess ? _value : throw new InvalidOperationException("No value for failure result");
+}

src/Application/DTOs/PagedResult.cs

@@ -0,0 +1,12 @@
+namespace Application.DTOs;
+
+public class PagedResult<T>
+{
+    public List<T> Items { get; set; } = [];
+    public int TotalCount { get; set; }
+    public int PageNumber { get; set; }
+    public int PageSize { get; set; }
+    public int TotalPages => (int)Math.Ceiling((double)TotalCount / PageSize);
+    public bool HasPreviousPage => PageNumber > 1;
+    public bool HasNext => PageNumber < TotalPages;
+}

src/Application/DTOs/ResetPasswordDto.cs

@@ -0,0 +1,8 @@
+namespace Application.DTOs;
+
+public record ResetPasswordDto
+{
+    public required string Email { get; init; }
+    public required string EmailToken { get; init; }
+    public required string NewPassword { get; init; }
+}

src/Application/DTOs/UserDto.cs

@@ -0,0 +1,10 @@
+namespace Application.DTOs;
+
+public record UserDto
+{
+    public int Id { get; init; }
+    public required string Email { get; init; }
+    public required string Username { get; init; }
+    public DateTime LastLogin { get; init; }
+    public List<string> Roles { get; init; } = [];
+}

src/Application/Errors/AuthError.cs

@@ -0,0 +1,29 @@
+using Application.Common.Results;
+
+namespace Application.Errors;
+
+public static class AuthError
+{
+    public static Error InvalidRegisterRequest => new(ErrorTypeConstant.ValidationError, "Invalid register request");
+
+    public static Error EmailAlreadyExists => new(ErrorTypeConstant.ValidationError, "E-Mail already exists");
+
+    public static Error UsernameAlreadyExists => new(ErrorTypeConstant.ValidationError, "Username already exists");
+    public static Error InvalidLoginRequest => new(ErrorTypeConstant.ValidationError, "Invalid login request");
+
+    public static Error UserNotFound => new(ErrorTypeConstant.NotFound, "User not found");
+
+    public static Error InvalidPassword => new(ErrorTypeConstant.ValidationError, "Invalid Password");
+    public static Error InvalidResetLink => new(ErrorTypeConstant.ValidationError, "Invalid reset link");
+
+
+    public static Error CreateInvalidLoginRequestError(IEnumerable<string> errors)
+    {
+        return new Error(ErrorTypeConstant.ValidationError, string.Join(", ", errors));
+    }
+
+    public static Error CreateInvalidRegisterRequestError(IEnumerable<string> errors)
+    {
+        return new Error(ErrorTypeConstant.ValidationError, string.Join(", ", errors));
+    }
+}

src/Application/Errors/UserError.cs

@@ -0,0 +1,54 @@
+using Application.Common.Results;
+
+namespace Application.Errors;
+
+public static class UserError
+{
+    public static Error InternalServerError =>
+        new(ErrorTypeConstant.InternalServerError, "something went wrong");
+
+    public static Error UserNotFound =>
+        new(ErrorTypeConstant.NotFound, "User not found");
+
+    public static Error UserCookieConsentNotFound =>
+        new(ErrorTypeConstant.NotFound, "Cookie consent not found for user");
+
+    public static Error FailedToAssignRole =>
+        new(ErrorTypeConstant.InternalServerError, "failed to assign role");
+
+    public static Error FailedToRevokeRole =>
+        new(ErrorTypeConstant.InternalServerError, "failed to revoke role");
+
+    public static Error UserAlreadyHasRole =>
+        new(ErrorTypeConstant.ValidationError, "User already has role");
+
+    public static Error UserHasNoRole =>
+        new(ErrorTypeConstant.ValidationError, "User already has no role");
+
+    public static Error FailedToRevokeCookieConsent =>
+        new(ErrorTypeConstant.InternalServerError, "failed to revoke cookie consent");
+
+    public static Error UserAlreadyHasCookieConsent =>
+        new(ErrorTypeConstant.ValidationError, "User already has cookie consent");
+
+    public static Error UserHasNoCookieConsent =>
+        new(ErrorTypeConstant.ValidationError, "User already has no cookie consent");
+
+    public static Error CannotDeleteYourself =>
+        new(ErrorTypeConstant.ValidationError, "You cannot delete your own account");
+
+    public static Error CreateInvalidUserUpdateRequestError(IEnumerable<string> errors)
+    {
+        return new Error(ErrorTypeConstant.ValidationError, string.Join(", ", errors));
+    }
+
+    public static Error CreateInvalidCookieConsentError(IEnumerable<string> errors)
+    {
+        return new Error(ErrorTypeConstant.ValidationError, string.Join(", ", errors));
+    }
+
+    public static Error CreateInvalidLoginRequestError(IEnumerable<string> errors)
+    {
+        return new Error(ErrorTypeConstant.ValidationError, string.Join(", ", errors));
+    }
+}

src/Application/Extensions/ServiceCollectionExtensions.cs

@@ -0,0 +1,20 @@
+using Application.Interfaces;
+using Application.Services;
+using FluentValidation;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Application.Extensions;
+
+public static class ServiceCollectionExtensions
+{
+    public static IServiceCollection AddApplication(this IServiceCollection services)
+    {
+        services.AddValidatorsFromAssembly(typeof(ServiceCollectionExtensions).Assembly);
+        services.AddScoped<IAuthenticationService, AuthenticationService>();
+        services.AddScoped<IJwtService, JwtService>();
+        services.AddScoped<IEmailService, EmailService>();
+        services.AddScoped<IUserService, UserService>();
+
+        return services;
+    }
+}

src/Application/Interfaces/IAuthenticationService.cs

@@ -0,0 +1,14 @@
+using Application.Common.Results;
+using Application.DTOs;
+using Application.Models;
+
+namespace Application.Interfaces;
+
+public interface IAuthenticationService
+{
+    Task<Result> RegisterAsync(RegisterRequest request);
+    Task<Result> LoginAsync(LoginRequest request);
+    Task<Result> RefreshTokensAsync(RefreshTokenRequest request);
+    Task<Result> SendResetEmailAsync(string email);
+    Task<Result> ResetPasswordAsync(ResetPasswordDto resetPasswordDto);
+}

src/Application/Interfaces/IEmailService.cs

@@ -0,0 +1,8 @@
+using Application.Models;
+
+namespace Application.Interfaces;
+
+public interface IEmailService
+{
+    void SendEmailAsync(EmailRequest emailRequest);
+}

src/Application/Interfaces/IJwtService.cs

@@ -0,0 +1,10 @@
+using Domain.Entities;
+
+namespace Application.Interfaces;
+
+public interface IJwtService
+{
+    Task<string> GenerateTokenAsync(User user);
+    Task<string> GenerateAndSaveRefreshTokenAsync(User user);
+    Task<User?> ValidateRefreshTokenAsync(int userId, string refreshToken);
+}

src/Application/Interfaces/IUserService.cs

@@ -0,0 +1,15 @@
+using Application.Common.Results;
+using Application.DTOs;
+using Application.Models;
+
+namespace Application.Interfaces;
+
+public interface IUserService
+{
+    Task<Result<PagedResult<UserDto>>> GetAsync(int pageNumber = 1, int pageSize = 10);
+    Task<Result<string>> UpdateAsync(UserUpdateRequest user);
+    Task<Result<string>> DeleteAsync(int id, int currentUserId);
+    Task<Result<UserDto>> GetUserByIdAsync(int id);
+    Task<Result<string>> AssignRoleAsync(AssingRoleRequest roleRequest);
+    Task<Result<string>> RevokeRoleAsync(AssingRoleRequest roleRequest);
+}

src/Application/Models/AssingRoleRequest.cs

@@ -0,0 +1,3 @@
+namespace Application.Models;
+
+public record AssingRoleRequest(int UserId, int RoleId);

src/Application/Models/EmailRequest.cs

@@ -0,0 +1,15 @@
+namespace Application.Models;
+
+public class EmailRequest
+{
+    public EmailRequest(string to, string subject, string content)
+    {
+        To = to;
+        Subject = subject;
+        Content = content;
+    }
+
+    public string To { get; set; }
+    public string Subject { get; set; }
+    public string Content { get; set; }
+}

src/Application/Models/LoginRequest.cs

@@ -0,0 +1,3 @@
+namespace Application.Models;
+
+public record LoginRequest(string Email, string Password);

src/Application/Models/RefreshTokenRequest.cs

@@ -0,0 +1,7 @@
+namespace Application.Models;
+
+public class RefreshTokenRequest
+{
+    public int UserId { get; set; }
+    public required string RefreshToken { get; set; }
+}

src/Application/Models/RegisterRequest.cs

@@ -0,0 +1,7 @@
+namespace Application.Models;
+
+public record RegisterRequest(
+    string Username,
+    string Email,
+    string Password
+);

src/Application/Models/TokenResponse.cs

@@ -0,0 +1,7 @@
+namespace Application.Models;
+
+public class TokenResponse
+{
+    public required string AccessToken { get; set; }
+    public required string RefreshToken { get; set; }
+}

src/Application/Models/UserUpdateRequest.cs

@@ -0,0 +1,3 @@
+namespace Application.Models;
+
+public record UserUpdateRequest(int Id, string Username, string Email);

src/Application/Services/AuthenticationService.cs

@@ -0,0 +1,147 @@
+using System.Security.Cryptography;
+using Application.Common.Results;
+using Application.DTOs;
+using Application.Errors;
+using Application.Interfaces;
+using Application.Models;
+using Application.Validators;
+using Domain.Entities;
+using Domain.Interface;
+using Infrastructure.Utilities;
+using Microsoft.AspNetCore.Identity;
+
+namespace Application.Services;
+
+public class AuthenticationService(
+    IUnitOfWork unitOfWork,
+    IUserRepository iUserRepository,
+    LoginRequestValidator loginRequestValidator,
+    RegisterRequestValidator registerRequestValidator,
+    IJwtService jwtService,
+    IEmailService emailService) : IAuthenticationService
+{
+    public async Task<Result> RegisterAsync(RegisterRequest registerRequest)
+    {
+        var validationResult = await registerRequestValidator.ValidateAsync(registerRequest);
+        if (!validationResult.IsValid)
+        {
+            var errors = validationResult.Errors.Select(x => x.ErrorMessage);
+            return Result.Failure(AuthError.CreateInvalidRegisterRequestError(errors));
+        }
+
+        var emailExists = await iUserRepository.GetUserByEmailAsync(registerRequest.Email);
+        if (emailExists is not null) return Result.Failure(AuthError.EmailAlreadyExists);
+
+        var usernameExists = await iUserRepository.GetUserByUsernameAsync(registerRequest.Username);
+        if (usernameExists is not null) return Result.Failure(AuthError.UsernameAlreadyExists);
+
+        var user = new User
+        {
+            Username = registerRequest.Username,
+            Email = registerRequest.Email,
+            Password = registerRequest.Password,
+            UserRoles = [new UserRole { RoleId = 3 }]
+        };
+
+        var passwordHasher = new PasswordHasher<User>();
+        var hashedPassword = passwordHasher.HashPassword(user, registerRequest.Password);
+        user.Password = hashedPassword;
+
+        await iUserRepository.AddAsync(user);
+        await unitOfWork.CommitAsync();
+        return Result.Success("User registered successfully.");
+    }
+
+    public async Task<Result> LoginAsync(LoginRequest loginRequest)
+    {
+        var validationResult = await loginRequestValidator.ValidateAsync(loginRequest);
+        if (!validationResult.IsValid)
+        {
+            var errors = validationResult.Errors.Select(x => x.ErrorMessage);
+            return Result.Failure(AuthError.CreateInvalidLoginRequestError(errors));
+        }
+
+        var (email, password) = loginRequest;
+        var user = await iUserRepository.GetUserByEmailAsync(email);
+        if (user is null) return Result.Failure(AuthError.UserNotFound);
+
+        var passwordHasher = new PasswordHasher<User>();
+        var verificationResult = passwordHasher.VerifyHashedPassword(user, user.Password, password);
+        if (verificationResult == PasswordVerificationResult.Failed)
+            return Result.Failure(AuthError.InvalidPassword);
+
+        user.LastLogin = DateTime.UtcNow;
+        iUserRepository.Update(user);
+
+
+        var token = new TokenResponse
+        {
+            AccessToken = await jwtService.GenerateTokenAsync(user),
+            RefreshToken = await jwtService.GenerateAndSaveRefreshTokenAsync(user)
+        };
+        var result = new
+        {
+            Token = token, user.Username
+        };
+
+        return Result.Success(result);
+    }
+
+    public async Task<Result> RefreshTokensAsync(RefreshTokenRequest request)
+    {
+        var user = await jwtService.ValidateRefreshTokenAsync(request.UserId, request.RefreshToken);
+        if (user is null) return Result.Failure(AuthError.UserNotFound);
+
+        var result = new TokenResponse
+        {
+            AccessToken = await jwtService.GenerateTokenAsync(user),
+            RefreshToken = await jwtService.GenerateAndSaveRefreshTokenAsync(user)
+        };
+
+        return Result.Success(result);
+    }
+
+    public async Task<Result> SendResetEmailAsync(string email)
+    {
+        var user = await iUserRepository.GetUserByEmailAsync(email);
+        if (user is null) return Result.Failure(AuthError.UserNotFound);
+
+        var tokenBytes = RandomNumberGenerator.GetBytes(64);
+        var emailToken = Convert.ToBase64String(tokenBytes);
+        user.ResetPasswordToken = emailToken;
+        user.ResetPasswordTokenExpiryTime = DateTime.UtcNow.AddMinutes(15);
+        var emailModel = new EmailRequest(email, "Reset Password!!", EmailBody.EmailStringBody(email, emailToken));
+        emailService.SendEmailAsync(emailModel);
+        iUserRepository.Update(user);
+        await unitOfWork.CommitAsync();
+        return Result.Success("Reset email sent successfully");
+    }
+
+    public async Task<Result> ResetPasswordAsync(ResetPasswordDto resetPasswordDto)
+    {
+        // Normalize the incoming token if '+' was converted to space by transport layers.
+        var normalizedToken = (resetPasswordDto.EmailToken ?? string.Empty).Replace(" ", "+");
+
+        var user = await iUserRepository.GetUserByEmailAsync(resetPasswordDto.Email);
+        if (user is null) return Result.Failure(AuthError.UserNotFound);
+
+        var tokenCode = user.ResetPasswordToken;
+        var emailTokenExpiryTime = user.ResetPasswordTokenExpiryTime;
+
+        // Validate token and expiration using UTC to match stored times
+        if (string.IsNullOrWhiteSpace(normalizedToken) || tokenCode != normalizedToken ||
+            emailTokenExpiryTime < DateTime.UtcNow) return Result.Failure(AuthError.InvalidResetLink);
+
+        var passwordHasher = new PasswordHasher<User>();
+        var hashedPassword = passwordHasher.HashPassword(user, resetPasswordDto.NewPassword);
+        user.Password = hashedPassword;
+
+        // Invalidate the reset token after successful use
+        user.ResetPasswordToken = null;
+        user.ResetPasswordTokenExpiryTime = default;
+
+        iUserRepository.Update(user);
+        await unitOfWork.CommitAsync();
+        return Result.Success("Password reset successfully");
+    }
+}

src/Application/Services/EmailService.cs

@@ -0,0 +1,49 @@
+using Application.Interfaces;
+using Application.Models;
+using MailKit.Net.Smtp;
+using Microsoft.Extensions.Configuration;
+using MimeKit;
+using MimeKit.Text;
+
+namespace Application.Services;
+
+public class EmailService(IConfiguration config, Func<ISmtpClient>? smtpClientFactory)
+    : IEmailService
+{
+    private readonly Func<ISmtpClient> _smtpClientFactory = smtpClientFactory ?? (() => new SmtpClient());
+
+    public EmailService(IConfiguration config) : this(config, null)
+    {
+    }
+
+    public void SendEmailAsync(EmailRequest emailRequest)
+    {
+        var emailMessage = new MimeMessage();
+        var from = config["EmailSettings:From"];
+        emailMessage.From.Add(new MailboxAddress("RssReader", from));
+        emailMessage.To.Add(new MailboxAddress(emailRequest.To, emailRequest.To));
+        emailMessage.Subject = emailRequest.Subject;
+        emailMessage.Body = new TextPart(TextFormat.Html)
+        {
+            Text = string.Format(emailRequest.Content)
+        };
+
+        var client = _smtpClientFactory();
+        try
+        {
+            client.Connect(config["EmailSettings:SmtpServer"], 465, true);
+            client.Authenticate(config["EmailSettings:From"], config["EmailSettings:Password"]);
+            client.Send(emailMessage);
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+        finally
+        {
+            client.Disconnect(true);
+            client.Dispose();
+        }
+    }
+}

src/Application/Services/JwtService.cs

@@ -0,0 +1,65 @@
+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
+using System.Text;
+using Application.Interfaces;
+using Domain.Entities;
+using Domain.Interface;
+using Infrastructure.Utilities;
+using Microsoft.Extensions.Configuration;
+using Microsoft.IdentityModel.Tokens;
+
+namespace Application.Services;
+
+public class JwtService(
+    IConfiguration configuration,
+    IUserRepository userRepository,
+    IUnitOfWork unitOfWork) : IJwtService
+{
+    public async Task<string> GenerateTokenAsync(User user)
+    {
+        var secretKey = configuration["Jwt:Key"];
+        var securityKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(secretKey!));
+        var credentials = new SigningCredentials(securityKey, SecurityAlgorithms.HmacSha256);
+        var roles = await userRepository.GetUserRolesByEmailAsync(user.Email);
+        var claims = new List<Claim>
+        {
+            new(ClaimTypes.Email, user.Email),
+            new("UserId", user.Id.ToString()),
+            new("username", user.Username)
+        };
+        claims.AddRange(roles.Select(role => new Claim(ClaimTypes.Role, role)));
+
+        var tokenDescriptor = new SecurityTokenDescriptor
+        {
+            Subject = new ClaimsIdentity(claims),
+            Expires = DateTime.UtcNow.AddDays(1), // set a token expiration time
+            SigningCredentials = credentials,
+            Issuer = configuration["Jwt:Issuer"],
+            Audience = configuration["Jwt:Audience"]
+        };
+
+        var tokenHandler = new JwtSecurityTokenHandler();
+        var securityToken = tokenHandler.CreateToken(tokenDescriptor);
+        return tokenHandler.WriteToken(securityToken);
+    }
+
+    public async Task<string> GenerateAndSaveRefreshTokenAsync(User user)
+    {
+        var refreshToken = GenerateRefreshTokenHelper.GenerateRefreshToken();
+        user.RefreshToken = refreshToken;
+        user.RefreshTokenExpiryTime = DateTime.UtcNow.AddDays(5);
+        userRepository.Update(user);
+        await unitOfWork.CommitAsync();
+        return refreshToken;
+    }
+
+
+    public async Task<User?> ValidateRefreshTokenAsync(int userId, string refreshToken)
+    {
+        var user = await userRepository.GetUserByIdAsync(userId);
+        if (user is null || user.RefreshToken != refreshToken
+                         || user.RefreshTokenExpiryTime <= DateTime.UtcNow)
+            return null;
+        return user;
+    }
+}

src/Application/Services/UserService.cs

@@ -0,0 +1,163 @@
+using Application.Common.Results;
+using Application.DTOs;
+using Application.Errors;
+using Application.Interfaces;
+using Application.Models;
+using Application.Validators;
+using Domain.Interface;
+
+namespace Application.Services;
+
+public class UserService(
+    IUnitOfWork unitOfWork,
+    UserUpdateRequestValidator userUpdateRequestValidator,
+    IUserRepository userRepository,
+    IUserRoleRepository userRoleRepository) : IUserService
+{
+    public async Task<Result<PagedResult<UserDto>>> GetAsync(int pageNumber = 1, int pageSize = 10)
+    {
+        try
+        {
+            // fetch all users
+            var users = await userRepository.GetAllAsync();
+            var totalCount = users.Count;
+            var pagedItems = users
+                .Skip((pageNumber - 1) * pageSize)
+                .Take(pageSize)
+                .Select(user => new UserDto
+                {
+                    Id = user.Id,
+                    Email = user.Email,
+                    Username = user.Username,
+                    LastLogin = user.LastLogin,
+                    Roles = user.UserRoles.Select(x => x.Role?.Name ?? "Unknown").ToList()
+                })
+                .ToList();
+
+            var pageResult = new PagedResult<UserDto>
+            {
+                Items = pagedItems,
+                TotalCount = totalCount,
+                PageNumber = pageNumber,
+                PageSize = pageSize
+            };
+            return Result.Success(pageResult);
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+    }
+
+    public async Task<Result<string>> UpdateAsync(UserUpdateRequest userUpdateRequest)
+    {
+        try
+        {
+            // validate request
+            var validationResult = await userUpdateRequestValidator.ValidateAsync(userUpdateRequest);
+            if (!validationResult.IsValid)
+            {
+                var errors = validationResult.Errors.Select(a => a.ErrorMessage);
+                return Result.Failure<string>(UserError.CreateInvalidUserUpdateRequestError(errors));
+            }
+
+            // check if a user exists
+            var user = await userRepository.GetByIdAsync(userUpdateRequest.Id);
+            if (user == null) return Result.Failure<string>(UserError.UserNotFound);
+
+            // update user
+            user.Username = userUpdateRequest.Username;
+            user.Email = userUpdateRequest.Email;
+            userRepository.Update(user);
+            await unitOfWork.CommitAsync();
+            return Result.Success("User updated successfully");
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+    }
+
+    public async Task<Result<string>> DeleteAsync(int id, int currentUserId)
+    {
+        try
+        {
+            // Prevent users from deleting themselves
+            if (id == currentUserId) return Result.Failure<string>(UserError.CannotDeleteYourself);
+
+            var user = await userRepository.GetByIdAsync(id);
+            if (user == null) return Result.Failure<string>(UserError.UserNotFound);
+
+            userRepository.Delete(user);
+            await unitOfWork.CommitAsync();
+            return Result.Success("User deleted successfully");
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+    }
+
+    public async Task<Result<UserDto>> GetUserByIdAsync(int id)
+    {
+        try
+        {
+            var user = await userRepository.GetByIdAsync(id);
+            if (user is null) return Result.Failure<UserDto>(UserError.UserNotFound);
+            var userDetails = new UserDto
+            {
+                Id = user.Id,
+                Email = user.Email,
+                Username = user.Username,
+                LastLogin = user.LastLogin,
+                Roles = user.UserRoles.Select(x => x.Role?.Name ?? "Unknown").ToList()
+            };
+            return Result.Success(userDetails);
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+    }
+
+    public async Task<Result<string>> AssignRoleAsync(AssingRoleRequest roleRequest)
+    {
+        try
+        {
+            var isUserHasRole = userRoleRepository.HasRoleAsync(roleRequest.UserId, roleRequest.RoleId);
+            if (isUserHasRole.Result) return Result.Failure<string>(UserError.UserAlreadyHasRole);
+            var result = await userRoleRepository.AddRoleAsync(roleRequest.UserId, roleRequest.RoleId);
+            return result
+                ? Result.Success("Role assigned successfully")
+                : Result.Failure<string>(UserError.FailedToAssignRole);
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+    }
+
+    public async Task<Result<string>> RevokeRoleAsync(AssingRoleRequest roleRequest)
+    {
+        try
+        {
+            var isUserHasRole = userRoleRepository.HasRoleAsync(roleRequest.UserId, roleRequest.RoleId);
+            if (!isUserHasRole.Result) return Result.Failure<string>(UserError.UserHasNoRole);
+
+            var result = await userRoleRepository.RemoveRoleAsync(roleRequest.UserId, roleRequest.RoleId);
+            return result
+                ? Result.Success("Role revoked successfully")
+                : Result.Failure<string>(UserError.FailedToRevokeRole);
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+    }
+}

src/Application/Validators/LoginRequestValidator.cs

@@ -0,0 +1,17 @@
+using Application.Models;
+using FluentValidation;
+
+namespace Application.Validators;
+
+public class LoginRequestValidator : AbstractValidator<LoginRequest>
+{
+    public LoginRequestValidator()
+    {
+        RuleFor(x => x.Email)
+            .NotEmpty().WithMessage("Email is required.")
+            .EmailAddress().WithMessage("Email is not valid.");
+
+        RuleFor(x => x.Password)
+            .NotEmpty().WithMessage("Password is required.");
+    }
+}

src/Application/Validators/RegisterRequestValidator.cs

@@ -0,0 +1,29 @@
+using Application.Models;
+using FluentValidation;
+
+namespace Application.Validators;
+
+public class RegisterRequestValidator : AbstractValidator<RegisterRequest>
+{
+    public RegisterRequestValidator()
+    {
+        RuleFor(x => x.Email)
+            .NotEmpty().WithMessage("{PropertyName} is required.")
+            .EmailAddress().WithMessage("{PropertyName} is not valid.");
+
+        RuleFor(x => x.Password)
+            .NotEmpty().WithMessage("{PropertyName} is required.")
+            .MinimumLength(10).WithMessage("{PropertyName} must be at least 10 characters long.")
+            .Matches("[A-Z]").WithMessage("{PropertyName} must contain at least one uppercase letter.")
+            .Matches("[a-z]").WithMessage("{PropertyName} must contain at least one lowercase letter.")
+            .Matches("[0-9]").WithMessage("{PropertyName} must contain at least one digit.")
+            .Matches("[^a-zA-Z0-9]").WithMessage("{PropertyName} must contain at least one special character.");
+
+        RuleFor(x => x.Username)
+            .NotEmpty().WithMessage("{PropertyName} is required.")
+            .MinimumLength(3).WithMessage("{PropertyName} must be at least 3 characters long.")
+            .MaximumLength(20).WithMessage("{PropertyName} must not exceed 20 characters.")
+            .Matches("^[a-zA-Z0-9_]*$")
+            .WithMessage("{PropertyName} can only contain letters, numbers, and underscores.");
+    }
+}

src/Application/Validators/UserUpdateRequestValidator.cs

@@ -0,0 +1,21 @@
+using Application.Models;
+using FluentValidation;
+
+namespace Application.Validators;
+
+public class UserUpdateRequestValidator : AbstractValidator<UserUpdateRequest>
+{
+    public UserUpdateRequestValidator()
+    {
+        RuleFor(x => x.Username)
+            .NotEmpty().WithMessage("Username is required.")
+            .MaximumLength(50).WithMessage(user => "Username must not exceed 50 characters.");
+
+        RuleFor(x => x.Email)
+            .NotEmpty().WithMessage("Email is required.")
+            .EmailAddress().WithMessage("Email is invalid.");
+
+        RuleFor(x => x.Id)
+            .NotEmpty().GreaterThan(0).WithMessage("Id is required.");
+    }
+}

src/Domain/Entities/Role.cs

@@ -0,0 +1,9 @@
+namespace Domain.Entities;
+
+public class Role
+{
+    public required int Id { get; set; }
+    public required string Name { get; set; }
+
+    public List<UserRole> UserRoles { get; set; } = [];
+}

src/Domain/Entities/User.cs

@@ -0,0 +1,17 @@
+namespace Domain.Entities;
+
+public class User
+{
+    public int Id { get; set; }
+    public required string Username { get; set; }
+    public required string Email { get; set; }
+    public required string Password { get; set; }
+    public DateTime LastLogin { get; set; }
+    public string? RefreshToken { get; set; }
+    public DateTime? RefreshTokenExpiryTime { get; set; }
+    public string? ResetPasswordToken { get; set; }
+    public DateTime ResetPasswordTokenExpiryTime { get; set; }
+
+    public List<UserRole> UserRoles { get; set; } = [];
+
+}

src/Domain/Entities/UserRole.cs

@@ -0,0 +1,10 @@
+namespace Domain.Entities;
+
+public class UserRole
+{
+    public int UserId { get; set; }
+    public User? User { get; set; }
+
+    public int RoleId { get; set; }
+    public Role? Role { get; set; }
+}

src/Domain/Interface/IGenericRepository.cs

@@ -0,0 +1,10 @@
+namespace Domain.Interface;
+
+public interface IGenericRepository<TEntity> where TEntity : class
+{
+    Task<TEntity?> GetByIdAsync(int id);
+    Task<IReadOnlyList<TEntity>> GetAllAsync();
+    Task<TEntity> AddAsync(TEntity entity);
+    TEntity Update(TEntity entity);
+    void Delete(TEntity entity);
+}

src/Domain/Interface/IUnitOfWork.cs

@@ -0,0 +1,7 @@
+namespace Domain.Interface;
+
+public interface IUnitOfWork
+{
+    void Commit();
+    Task CommitAsync();
+}

src/Domain/Interface/IUserRepository.cs

@@ -0,0 +1,12 @@
+using Domain.Entities;
+
+namespace Domain.Interface;
+
+public interface IUserRepository : IGenericRepository<User>
+{
+    // extra implementation
+    Task<User?> GetUserByEmailAsync(string email);
+    Task<User?> GetUserByUsernameAsync(string username);
+    Task<List<string>> GetUserRolesByEmailAsync(string email);
+    Task<User?> GetUserByIdAsync(int id);
+}

src/Domain/Interface/IUserRoleRepository.cs

@@ -0,0 +1,8 @@
+namespace Domain.Interface;
+
+public interface IUserRoleRepository
+{
+    Task<bool> AddRoleAsync(int userId, int roleId);
+    Task<bool> RemoveRoleAsync(int userId, int roleId);
+    Task<bool> HasRoleAsync(int userId, int roleId);
+}

src/Infrastructure/Configuration/RoleConfiguration.cs

@@ -0,0 +1,27 @@
+using Domain.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Infrastructure.Configuration;
+
+public class RoleConfiguration : IEntityTypeConfiguration<Role>
+{
+    public void Configure(EntityTypeBuilder<Role> builder)
+    {
+        builder.ToTable("Roles", "auth");
+        builder.HasKey(x => x.Id);
+        builder.Property(x => x.Name)
+            .IsRequired()
+            .HasMaxLength(50);
+
+        builder.HasMany(x => x.UserRoles)
+            .WithOne(x => x.Role)
+            .HasForeignKey(x => x.RoleId);
+
+        builder.HasData(
+            new Role { Id = 1, Name = "SuperAdmin" },
+            new Role { Id = 2, Name = "Admin" },
+            new Role { Id = 3, Name = "User" }
+        );
+    }
+}

src/Infrastructure/Configuration/UserConfiguration.cs

@@ -0,0 +1,47 @@
+using Domain.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Infrastructure.Configuration;
+
+public class UserConfiguration : IEntityTypeConfiguration<User>
+{
+    public void Configure(EntityTypeBuilder<User> builder)
+    {
+        builder.ToTable("Users", "auth");
+
+        builder.HasKey(k => k.Id);
+
+        builder.Property(x => x.Username)
+            .IsRequired()
+            .HasMaxLength(50)
+            .HasColumnType("varchar(50)");
+
+        builder.Property(x => x.Password)
+            .IsRequired()
+            .HasMaxLength(250)
+            .HasColumnType("varchar(250)");
+
+        builder.Property(x => x.Email)
+            .IsRequired()
+            .HasMaxLength(100)
+            .HasColumnType("varchar(100)")
+            .HasAnnotation("RegularExpression", @"^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$");
+
+        builder.HasMany(x => x.UserRoles)
+            .WithOne(x => x.User)
+            .HasForeignKey(x => x.UserId);
+
+        builder.HasData(
+            new User
+            {
+                Id = 1, Username = "Superadmin", Email = "superadmin@wenske-services-development.de",
+                Password = "AQAAAAIAAYagAAAAEADJEu1s5qUJyP4gDUrBGyqSNtKU2IKBpZm0JqfyvOkJnqVeOHZBUrEhNr7IdQRDBQ=="
+            },
+            new User
+            {
+                Id = 2, Username = "Admin", Email = "admin@wenske-services-development.de",
+                Password = "AQAAAAIAAYagAAAAEIOUiJUfMrM1Lpt4Ae3FLQOB/Bk6WHtndRAWUp132afVunMvRqkT6Hhh+27kkNW8YQ=="
+            });
+    }
+}

src/Infrastructure/Configuration/UserRoleConfiguration.cs

@@ -0,0 +1,25 @@
+using Domain.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Infrastructure.Configuration;
+
+public class UserRoleConfiguration : IEntityTypeConfiguration<UserRole>
+{
+    public void Configure(EntityTypeBuilder<UserRole> builder)
+    {
+        builder.ToTable("UserRoles", "auth");
+        builder.HasKey(x => new { x.UserId, x.RoleId });
+        builder.HasOne(x => x.User)
+            .WithMany(x => x.UserRoles)
+            .HasForeignKey(x => x.UserId);
+
+        builder.HasOne(x => x.Role)
+            .WithMany(x => x.UserRoles)
+            .HasForeignKey(x => x.RoleId);
+
+        builder.HasData(
+            new UserRole { UserId = 1, RoleId = 1 },
+            new UserRole { UserId = 2, RoleId = 2 });
+    }
+}

src/Infrastructure/Context/ApplicationDbContext.cs

@@ -0,0 +1,16 @@
+using Domain.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace Infrastructure.Context;
+
+public class ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : DbContext(options)
+{
+    public DbSet<User> Users { get; set; }
+    public DbSet<Role> Roles { get; set; }
+    public DbSet<UserRole> UserRoles { get; set; }
+    
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.ApplyConfigurationsFromAssembly(typeof(ApplicationDbContext).Assembly);
+    }
+}

src/Infrastructure/Context/ApplicationDbContextFactory.cs

@@ -0,0 +1,30 @@
+using Infrastructure.Utilities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+using Microsoft.Extensions.Configuration;
+
+namespace Infrastructure.Context;
+
+public static class DbContextOptionsFactory
+{
+    public class ApplicationDbContextFactory : IDesignTimeDbContextFactory<ApplicationDbContext>
+    {
+        public ApplicationDbContext CreateDbContext(string[] args)
+        {
+// Build the configuration manually
+            var configuration = new ConfigurationBuilder()
+                .SetBasePath(Path.Combine(Directory.GetCurrentDirectory(), "../API"))
+                .AddJsonFile("appsettings.json")
+                .AddUserSecrets<ApplicationDbContextFactory>()
+                .Build();
+            // Read PostgreSQLSettings from configuration
+            var postgreSqlSettings = configuration.GetRequiredSection("PostgreSQLSettings").Get<PostgreSqlSettings>();
+            var connectionString = postgreSqlSettings?.ConnectionString;
+            var optionBuilder = new DbContextOptionsBuilder<ApplicationDbContext>();
+            if (connectionString != null)
+                optionBuilder.UseNpgsql(connectionString);
+
+            return new ApplicationDbContext(optionBuilder.Options);
+        }
+    }
+}

src/Infrastructure/Extensions/ServiceCollectionExtensions.cs

@@ -0,0 +1,19 @@
+using Domain.Interface;
+using Infrastructure.Repositories;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Infrastructure.Extensions;
+
+public static class ServiceCollectionExtensions
+{
+    public static IServiceCollection AddInfrastructure(this IServiceCollection services, IConfiguration configuration)
+    {
+        // Register repositories and unit of work
+        services.AddScoped(typeof(IGenericRepository<>), typeof(GenericRepository<>));
+        services.AddScoped<IUnitOfWork, UnitOfWork>();
+        services.AddScoped<IUserRepository, UserRepository>();
+        services.AddScoped<IUserRoleRepository, UserRoleRepository>();
+        return services;
+    }
+}

src/Infrastructure/Infrastructure.csproj

@@ -4,6 +4,32 @@
         <TargetFramework>net10.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
+        <UserSecretsId>9c947c10-2373-4590-92a9-e5fe6b759c69</UserSecretsId>
     </PropertyGroup>
 
+    <ItemGroup>
+      <Folder Include="Migrations\" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="Microsoft.AspNetCore" Version="2.3.9" />
+      <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel.Core" Version="2.3.9" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.2" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.2">
+        <PrivateAssets>all</PrivateAssets>
+        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      </PackageReference>
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="10.0.2" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="10.0.2">
+        <PrivateAssets>all</PrivateAssets>
+        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      </PackageReference>
+      <PackageReference Include="Microsoft.Extensions.Configuration" Version="10.0.2" />
+      <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.0" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\Domain\Domain.csproj" />
+    </ItemGroup>
+
 </Project>

src/Infrastructure/Migrations/20260206104345_InitialCreate.Designer.cs

@@ -0,0 +1,185 @@
+// <auto-generated />
+using System;
+using Infrastructure.Context;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Infrastructure.Migrations
+{
+    [DbContext(typeof(ApplicationDbContext))]
+    [Migration("20260206104345_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.2")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Domain.Entities.Role", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Roles", "auth");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            Name = "SuperAdmin"
+                        },
+                        new
+                        {
+                            Id = 2,
+                            Name = "Admin"
+                        },
+                        new
+                        {
+                            Id = 3,
+                            Name = "User"
+                        });
+                });
+
+            modelBuilder.Entity("Domain.Entities.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("varchar(100)")
+                        .HasAnnotation("RegularExpression", "^\\w+([-+.']\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*$");
+
+                    b.Property<DateTime>("LastLogin")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasMaxLength(250)
+                        .HasColumnType("varchar(250)");
+
+                    b.Property<string>("RefreshToken")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime?>("RefreshTokenExpiryTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ResetPasswordToken")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("ResetPasswordTokenExpiryTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("varchar(50)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Users", "auth");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            Email = "admin@rss.wenske-services-development.de",
+                            LastLogin = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Password = "AQAAAAIAAYagAAAAELBxAsYVTssn5taCQ7CMo+Mzn0i87Jt8ZXJTe7cgG5hfN3wDJzIkQaotyFhM/mQGaQ==",
+                            ResetPasswordTokenExpiryTime = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Username = "Superadmin"
+                        },
+                        new
+                        {
+                            Id = 2,
+                            Email = "info@rss.wenske-services-development.de",
+                            LastLogin = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Password = "AQAAAAIAAYagAAAAEP0NWiTTz20doMf/KL0WkBR+5roc5KTouMrfiHk2MMXOQn+E+C5Q4dqWD7PnNoxUmQ==",
+                            ResetPasswordTokenExpiryTime = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Username = "Admin"
+                        });
+                });
+
+            modelBuilder.Entity("Domain.Entities.UserRole", b =>
+                {
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RoleId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("UserRoles", "auth");
+
+                    b.HasData(
+                        new
+                        {
+                            UserId = 1,
+                            RoleId = 1
+                        },
+                        new
+                        {
+                            UserId = 2,
+                            RoleId = 2
+                        });
+                });
+
+            modelBuilder.Entity("Domain.Entities.UserRole", b =>
+                {
+                    b.HasOne("Domain.Entities.Role", "Role")
+                        .WithMany("UserRoles")
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Domain.Entities.User", "User")
+                        .WithMany("UserRoles")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Role");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Domain.Entities.Role", b =>
+                {
+                    b.Navigation("UserRoles");
+                });
+
+            modelBuilder.Entity("Domain.Entities.User", b =>
+                {
+                    b.Navigation("UserRoles");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/Infrastructure/Migrations/20260206104345_InitialCreate.cs

@@ -0,0 +1,136 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+#pragma warning disable CA1814 // Prefer jagged arrays over multidimensional
+
+namespace Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.EnsureSchema(
+                name: "auth");
+
+            migrationBuilder.CreateTable(
+                name: "Roles",
+                schema: "auth",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "character varying(50)", maxLength: 50, nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Roles", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Users",
+                schema: "auth",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Username = table.Column<string>(type: "varchar(50)", maxLength: 50, nullable: false),
+                    Email = table.Column<string>(type: "varchar(100)", maxLength: 100, nullable: false),
+                    Password = table.Column<string>(type: "varchar(250)", maxLength: 250, nullable: false),
+                    LastLogin = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    RefreshToken = table.Column<string>(type: "text", nullable: true),
+                    RefreshTokenExpiryTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: true),
+                    ResetPasswordToken = table.Column<string>(type: "text", nullable: true),
+                    ResetPasswordTokenExpiryTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Users", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "UserRoles",
+                schema: "auth",
+                columns: table => new
+                {
+                    UserId = table.Column<int>(type: "integer", nullable: false),
+                    RoleId = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_UserRoles", x => new { x.UserId, x.RoleId });
+                    table.ForeignKey(
+                        name: "FK_UserRoles_Roles_RoleId",
+                        column: x => x.RoleId,
+                        principalSchema: "auth",
+                        principalTable: "Roles",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_UserRoles_Users_UserId",
+                        column: x => x.UserId,
+                        principalSchema: "auth",
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.InsertData(
+                schema: "auth",
+                table: "Roles",
+                columns: new[] { "Id", "Name" },
+                values: new object[,]
+                {
+                    { 1, "SuperAdmin" },
+                    { 2, "Admin" },
+                    { 3, "User" }
+                });
+
+            migrationBuilder.InsertData(
+                schema: "auth",
+                table: "Users",
+                columns: new[] { "Id", "Email", "LastLogin", "Password", "RefreshToken", "RefreshTokenExpiryTime", "ResetPasswordToken", "ResetPasswordTokenExpiryTime", "Username" },
+                values: new object[,]
+                {
+                    { 1, "admin@rss.wenske-services-development.de", new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified), "AQAAAAIAAYagAAAAELBxAsYVTssn5taCQ7CMo+Mzn0i87Jt8ZXJTe7cgG5hfN3wDJzIkQaotyFhM/mQGaQ==", null, null, null, new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified), "Superadmin" },
+                    { 2, "info@rss.wenske-services-development.de", new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified), "AQAAAAIAAYagAAAAEP0NWiTTz20doMf/KL0WkBR+5roc5KTouMrfiHk2MMXOQn+E+C5Q4dqWD7PnNoxUmQ==", null, null, null, new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified), "Admin" }
+                });
+
+            migrationBuilder.InsertData(
+                schema: "auth",
+                table: "UserRoles",
+                columns: new[] { "RoleId", "UserId" },
+                values: new object[,]
+                {
+                    { 1, 1 },
+                    { 2, 2 }
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_UserRoles_RoleId",
+                schema: "auth",
+                table: "UserRoles",
+                column: "RoleId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "UserRoles",
+                schema: "auth");
+
+            migrationBuilder.DropTable(
+                name: "Roles",
+                schema: "auth");
+
+            migrationBuilder.DropTable(
+                name: "Users",
+                schema: "auth");
+        }
+    }
+}

src/Infrastructure/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -0,0 +1,182 @@
+// <auto-generated />
+using System;
+using Infrastructure.Context;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Infrastructure.Migrations
+{
+    [DbContext(typeof(ApplicationDbContext))]
+    partial class ApplicationDbContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.2")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Domain.Entities.Role", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Roles", "auth");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            Name = "SuperAdmin"
+                        },
+                        new
+                        {
+                            Id = 2,
+                            Name = "Admin"
+                        },
+                        new
+                        {
+                            Id = 3,
+                            Name = "User"
+                        });
+                });
+
+            modelBuilder.Entity("Domain.Entities.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("varchar(100)")
+                        .HasAnnotation("RegularExpression", "^\\w+([-+.']\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*$");
+
+                    b.Property<DateTime>("LastLogin")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasMaxLength(250)
+                        .HasColumnType("varchar(250)");
+
+                    b.Property<string>("RefreshToken")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime?>("RefreshTokenExpiryTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ResetPasswordToken")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("ResetPasswordTokenExpiryTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("varchar(50)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Users", "auth");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            Email = "admin@rss.wenske-services-development.de",
+                            LastLogin = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Password = "AQAAAAIAAYagAAAAELBxAsYVTssn5taCQ7CMo+Mzn0i87Jt8ZXJTe7cgG5hfN3wDJzIkQaotyFhM/mQGaQ==",
+                            ResetPasswordTokenExpiryTime = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Username = "Superadmin"
+                        },
+                        new
+                        {
+                            Id = 2,
+                            Email = "info@rss.wenske-services-development.de",
+                            LastLogin = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Password = "AQAAAAIAAYagAAAAEP0NWiTTz20doMf/KL0WkBR+5roc5KTouMrfiHk2MMXOQn+E+C5Q4dqWD7PnNoxUmQ==",
+                            ResetPasswordTokenExpiryTime = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Username = "Admin"
+                        });
+                });
+
+            modelBuilder.Entity("Domain.Entities.UserRole", b =>
+                {
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RoleId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("UserRoles", "auth");
+
+                    b.HasData(
+                        new
+                        {
+                            UserId = 1,
+                            RoleId = 1
+                        },
+                        new
+                        {
+                            UserId = 2,
+                            RoleId = 2
+                        });
+                });
+
+            modelBuilder.Entity("Domain.Entities.UserRole", b =>
+                {
+                    b.HasOne("Domain.Entities.Role", "Role")
+                        .WithMany("UserRoles")
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Domain.Entities.User", "User")
+                        .WithMany("UserRoles")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Role");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Domain.Entities.Role", b =>
+                {
+                    b.Navigation("UserRoles");
+                });
+
+            modelBuilder.Entity("Domain.Entities.User", b =>
+                {
+                    b.Navigation("UserRoles");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/Infrastructure/Repositories/GenericRepository.cs

@@ -0,0 +1,38 @@
+using Domain.Interface;
+using Infrastructure.Context;
+using Microsoft.EntityFrameworkCore;
+
+namespace Infrastructure.Repositories;
+
+public class GenericRepository<TEntity>(ApplicationDbContext applicationDbContext)
+    : IGenericRepository<TEntity> where TEntity : class
+{
+    protected readonly DbSet<TEntity> DbSet = applicationDbContext.Set<TEntity>();
+
+    public async Task<TEntity> AddAsync(TEntity entity)
+    {
+        var entry = await DbSet.AddAsync(entity);
+        return entry.Entity;
+    }
+
+    public void Delete(TEntity entity)
+    {
+        DbSet.Remove(entity);
+    }
+
+    public async Task<IReadOnlyList<TEntity>> GetAllAsync()
+    {
+        return await DbSet.ToListAsync();
+    }
+
+    public async Task<TEntity?> GetByIdAsync(int id)
+    {
+        return await DbSet.FindAsync(id);
+    }
+
+    public TEntity Update(TEntity entity)
+    {
+        var entry = DbSet.Update(entity);
+        return entry.Entity;
+    }
+}

src/Infrastructure/Repositories/UnitOfWork.cs

@@ -0,0 +1,17 @@
+using Domain.Interface;
+using Infrastructure.Context;
+
+namespace Infrastructure.Repositories;
+
+public class UnitOfWork(ApplicationDbContext context) : IUnitOfWork
+{
+    public void Commit()
+    {
+        context.SaveChanges();
+    }
+
+    public async Task CommitAsync()
+    {
+        await context.SaveChangesAsync();
+    }
+}

src/Infrastructure/Repositories/UserRepository.cs

@@ -0,0 +1,34 @@
+using Domain.Entities;
+using Domain.Interface;
+using Infrastructure.Context;
+using Microsoft.EntityFrameworkCore;
+
+namespace Infrastructure.Repositories;
+
+public class UserRepository(ApplicationDbContext applicationDbContext)
+    : GenericRepository<User>(applicationDbContext), IUserRepository
+{
+    public async Task<User?> GetUserByEmailAsync(string email)
+    {
+        return await DbSet.FirstOrDefaultAsync(u => u.Email == email);
+    }
+
+    public async Task<User?> GetUserByUsernameAsync(string username)
+    {
+        return await DbSet.FirstOrDefaultAsync(u => u.Username == username);
+    }
+
+    public async Task<List<string>> GetUserRolesByEmailAsync(string email)
+    {
+        return await DbSet
+            .Where(ur => ur.Email == email)
+            .SelectMany(ur => ur.UserRoles)
+            .Select(ur => ur.Role!.Name)
+            .ToListAsync();
+    }
+
+    public async Task<User?> GetUserByIdAsync(int id)
+    {
+        return await DbSet.FindAsync(id);
+    }
+}

src/Infrastructure/Repositories/UserRoleRepository.cs

@@ -0,0 +1,62 @@
+using Domain.Entities;
+using Domain.Interface;
+using Infrastructure.Context;
+using Microsoft.EntityFrameworkCore;
+
+namespace Infrastructure.Repositories;
+
+public class UserRoleRepository(ApplicationDbContext applicationDbContext) : IUserRoleRepository
+{
+    public async Task<bool> AddRoleAsync(int userId, int roleId)
+    {
+        try
+        {
+            var userRole = new UserRole
+            {
+                UserId = userId,
+                RoleId = roleId
+            };
+            await applicationDbContext.UserRoles.AddAsync(userRole);
+            var result = await applicationDbContext.SaveChangesAsync() > 0;
+            return result;
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+    }
+
+    public async Task<bool> RemoveRoleAsync(int userId, int roleId)
+    {
+        try
+        {
+            var userRole =
+                await applicationDbContext.UserRoles.FirstOrDefaultAsync(u => u.UserId == userId && u.RoleId == roleId);
+            if (userRole is null) return false;
+            applicationDbContext.UserRoles.Remove(userRole);
+            var result = await applicationDbContext.SaveChangesAsync() > 0;
+            return result;
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+    }
+
+    public async Task<bool> HasRoleAsync(int userId, int roleId)
+    {
+        try
+        {
+            var isUserHasRole =
+                await applicationDbContext.UserRoles.AnyAsync(u => u.UserId == userId && u.RoleId == roleId);
+            return isUserHasRole;
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            throw;
+        }
+    }
+}

src/Infrastructure/Utilities/EmailBody.cs

@@ -0,0 +1,72 @@
+namespace Infrastructure.Utilities;
+
+public static class EmailBody
+{
+    public static string EmailStringBody(string email, string emailToken)
+    {
+        // URL-encode parameters for security
+        var encodedEmail = Uri.EscapeDataString(email);
+        var encodedToken = Uri.EscapeDataString(emailToken);
+
+        return $@"<!DOCTYPE html>
+<html lang=""en"">
+<head>
+    <meta charset=""UTF-8"">
+    <meta name=""viewport"" content=""width=device-width, initial-scale=1.0"">
+    <title>Reset Your Password</title>
+</head>
+<body style=""margin: 0; padding: 0; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f4f4f4;"">
+    <table width=""100%"" cellpadding=""0"" cellspacing=""0"" style=""background-color: #f4f4f4; padding: 20px 0;"">
+        <tr>
+            <td align=""center"">
+                <table width=""600"" cellpadding=""0"" cellspacing=""0"" style=""background: linear-gradient(#4d82c3, #605d5d, #fda400) no-repeat; border-radius: 10px; overflow: hidden; max-width: 100%;"">
+                    <tr>
+                        <td style=""padding: 40px 30px; background-color: rgba(255, 255, 255, 0.95); margin: 20px;"">
+                            <h1 style=""color: #333; text-align: center; margin: 0 0 20px 0; font-size: 28px;"">Reset Your Password</h1>
+                            <hr style=""border: none; border-top: 2px solid #4d82c3; margin: 20px 0;"">
+                            
+                            <p style=""color: #555; text-align: center; font-size: 16px; line-height: 1.6; margin: 20px 0;"">
+                                You're receiving this email because you requested a password reset for your RssReader account.
+                            </p>
+                            
+                            <p style=""color: #555; font-size: 16px; line-height: 1.6; margin: 20px 0;"">
+                                Please click the button below to choose a new password:
+                            </p>
+                            
+                            <table width=""100%"" cellpadding=""0"" cellspacing=""0"" style=""margin: 30px 0;"">
+                                <tr>
+                                    <td align=""center"">
+                                        <a href=""https://rss.wenske-services-development.de/reset?email={encodedEmail}&code={encodedToken}"" 
+                                           target=""_blank"" 
+                                           style=""background-color: #4d82c3; 
+                                                  color: #ffffff; 
+                                                  padding: 15px 40px; 
+                                                  text-decoration: none; 
+                                                  border-radius: 5px; 
+                                                  font-size: 16px; 
+                                                  font-weight: bold;
+                                                  display: inline-block;"">
+                                            Reset Password
+                                        </a>
+                                    </td>
+                                </tr>
+                            </table>
+                            
+                            <p style=""color: #999; font-size: 14px; line-height: 1.6; margin: 30px 0 0 0; border-top: 1px solid #e0e0e0; padding-top: 20px;"">
+                                If you didn't request a password reset, you can safely ignore this email.
+                            </p>
+                            
+                            <p style=""color: #555; font-size: 16px; margin: 30px 0 0 0;"">
+                                Kind regards,<br>
+                                <strong>The RssReader Team</strong>
+                            </p>
+                        </td>
+                    </tr>
+                </table>
+            </td>
+        </tr>
+    </table>
+</body>
+</html>";
+    }
+}

src/Infrastructure/Utilities/GenerateRefreshTokenHelper.cs

@@ -0,0 +1,14 @@
+using System.Security.Cryptography;
+
+namespace Infrastructure.Utilities;
+
+public abstract class GenerateRefreshTokenHelper
+{
+    public static string GenerateRefreshToken()
+    {
+        var randomNumber = new byte[32];
+        using var rng = RandomNumberGenerator.Create();
+        rng.GetBytes(randomNumber);
+        return Convert.ToBase64String(randomNumber);
+    }
+}

src/Infrastructure/Utilities/PostgreSqlSettings.cs

@@ -0,0 +1,11 @@
+namespace Infrastructure.Utilities;
+
+public class PostgreSqlSettings
+{
+    public string? Host { get; set; }
+    public string? Database { get; set; }
+    public string? Username { get; set; }
+    public string? Password { get; set; }
+
+    public string ConnectionString => $"Host={Host};Database={Database};Username={Username};Password={Password};";
+}