AuthenticateAsync returns AuthResult when is successful

Domains/Account/Core/Core.csproj

@@ -11,8 +11,4 @@
       <ProjectReference Include="..\..\Shared\Core\Core.csproj" />
     </ItemGroup>
 
-    <ItemGroup>
-      <Folder Include="Identity" />
-    </ItemGroup>
-
 </Project>

Domains/Account/Core/Identity/Dto/AuthResult.cs

@@ -0,0 +1,31 @@
+namespace CleanDDDArchitecture.Domains.Account.Core.Identity.Dto;
+
+/// <summary>
+/// Represents the result of an authentication operation.
+/// </summary>
+public class AuthResult
+{
+    /// <summary>
+    /// Gets or sets the token type.
+    /// Typically "Bearer" in OAuth2.
+    /// </summary>
+    public string TokenType { get; set; }
+
+    /// <summary>
+    /// Gets or sets the serialized access token.
+    /// This token is used for authenticating subsequent requests.
+    /// </summary>
+    public string AccessToken { get; set; }
+
+    /// <summary>
+    /// Gets or sets the number of seconds until the access token expires.
+    /// This is typically used by clients to know when to refresh the token.
+    /// </summary>
+    public long ExpiresIn { get; set; }
+
+    /// <summary>
+    /// Gets or sets the serialized refresh token.
+    /// This token is used to obtain a new access token once the current one expires.
+    /// </summary>
+    public string RefreshToken { get; set; }
+}

Domains/Account/Infrastructure/Identity/Mechanism/Authenticator.cs

@@ -7,6 +7,7 @@
 using Aviant.Core.Timing;
 using CleanDDDArchitecture.Domains.Account.Application.Identity;
 using CleanDDDArchitecture.Domains.Account.Core;
+using CleanDDDArchitecture.Domains.Account.Core.Identity.Dto;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.IdentityModel.Tokens;
@@ -78,12 +79,12 @@ internal Authenticator(
         // Update last accessed date
         await UpdateLastAccessedAsync(user);
 
-        return new
+        return new AuthResult
         {
-            token_type = "Bearer",
-            access_token = accessTokenSerialised,
-            expires_in = accessToken.ValidTo.ToUnixTimestamp() - Clock.Now.ToUnixTimestamp(),
-            refresh_token = refreshTokenSerialised
+            TokenType = "Bearer",
+            AccessToken = accessTokenSerialised,
+            ExpiresIn = (long)(accessToken.ValidTo.ToUnixTimestamp() - Clock.Now.ToUnixTimestamp()),
+            RefreshToken = refreshTokenSerialised
         };
     }