BusinessLogic/BusinessLogic.csproj

@@ -13,6 +13,7 @@
   <ItemGroup>
     <PackageReference Include="BCrypt.Net-Next" Version="4.0.3" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
+    <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="7.6.0" />
   </ItemGroup>
 
   <ItemGroup>

BusinessLogic/BusinessLogic/UserLogic.cs

@@ -102,7 +102,7 @@ namespace BusinessLogic.BusinessLogic
 			return UserConverter.ToView(user);
 		}
 
-		public UserViewModel Login(string email, string password)
+		public string Login(string email, string password)
 		{
 			if (email is null)
 			{
@@ -120,7 +120,7 @@ namespace BusinessLogic.BusinessLogic
 			{
 				throw new AccountException("The passwords don't match.");
 			}
-			return UserConverter.ToView(user);
+			return JwtProvider.Generate(user);
 		}
 
 		public void _validatePassword(string? password)

BusinessLogic/Tools/JwtProvider.cs

@@ -0,0 +1,41 @@
+using Contracts.BindingModels;
+using Contracts.ViewModels;
+using Microsoft.IdentityModel.Tokens;
+using System;
+using System.CodeDom.Compiler;
+using System.Collections.Generic;
+using System.IdentityModel.Tokens.Jwt;
+using System.Linq;
+using System.Security.Claims;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BusinessLogic.Tools
+{
+	public class JwtProvider
+	{
+		// TODO: Переместить ключ и время  в надежное место
+		private const string _key = "secretkey_secretkey_secretkey_secretkey";
+
+		private const int _expiresHours = 24;
+
+		public static string Generate(UserBindingModel user)
+		{
+			var signingCredentials = new SigningCredentials(
+				new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_key)),
+				SecurityAlgorithms.HmacSha256);
+
+			Claim[] claims = [
+				new("userId", user.Id.ToString()),
+				new("role", user.Role.Name)
+				];
+
+			var token = new JwtSecurityToken(signingCredentials: signingCredentials,
+				expires: DateTime.UtcNow.AddHours(_expiresHours),
+				claims: claims);
+
+			var stringToken = new JwtSecurityTokenHandler().WriteToken(token);
+			return stringToken;
+		}
+	}
+}

Contracts/BusinessLogicContracts/IUserLogic.cs

@@ -12,7 +12,7 @@ namespace Contracts.BusinessLogicContracts
 {
 	public interface IUserLogic
 	{
-		UserViewModel Login(string email, string password);
+		string Login(string email, string password);
 
 		UserViewModel Create(UserBindingModel model);