adding admin exists api

API/Controllers/AdminController.cs

@@ -0,0 +1,24 @@
+using System.Threading.Tasks;
+using API.Interfaces;
+using Microsoft.AspNetCore.Mvc;
+
+namespace API.Controllers
+{
+    public class AdminController : BaseApiController
+    {
+        private readonly IUserRepository _userRepository;
+
+        public AdminController(IUserRepository userRepository)
+        {
+            _userRepository = userRepository;
+        }
+
+        [HttpGet]
+        public async Task<ActionResult<bool>> AdminExists()
+        {
+            return await _userRepository.AdminExists();
+        }
+        
+        
+    }
+}

API/Data/UserRepository.cs

@@ -62,5 +62,11 @@ namespace API.Data
                 .ProjectTo<MemberDto>(_mapper.ConfigurationProvider)
                 .SingleOrDefaultAsync();
         }
+
+        public async Task<bool> AdminExists()
+        {
+            return await _context.Users.AnyAsync(x => x.IsAdmin);
+            
+        }
     }
 }

API/Interfaces/IUserRepository.cs

@@ -15,5 +15,6 @@ namespace API.Interfaces
         Task<AppUser> GetUserByUsernameAsync(string username);
         Task<IEnumerable<MemberDto>>  GetMembersAsync();
         Task<MemberDto> GetMemberAsync(string username);
+        Task<bool> AdminExists();
     }
 }