public async Task<IdentityResult> RegisterUser(UserModel userModel)
        {
            IdentityUser user = new IdentityUser
            {
                UserName = userModel.UserName,
            };

            var result = await _userManager.CreateAsync(user, userModel.Password);
            await _userManager.AddToRoleAsync(user.Id, "User");
            

            return result;
        }
        public async Task<IHttpActionResult> Register(UserModel userModel)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }
            
            IdentityResult result = await _repo.RegisterUser(userModel);
            
            if (result.Succeeded)
            {
                
            }
            IHttpActionResult errorResult = GetErrorResult(result);

            if (errorResult != null)
            {
                return errorResult;
            }

            return Ok();
        }