...

Back/Program.cs

@@ -1,6 +1,7 @@
 using Back;
 using Back.Data.Contracts;
 using Back.Data.Infrastructure.Repository;
+using Back.Features;
 using Back.Services;
 using Back.Validations;
 using Microsoft.EntityFrameworkCore;
@@ -80,7 +81,7 @@ app.UseHttpsRedirection();
 app.UseCors(origins);
 app.UseAuthentication();
 app.UseAuthorization();
-
+app.UseCheckOnlineUser();
 app.MapControllers();
 
 app.Run();