public UserReturnModel Create(ApplicationUser appUser)
 {
     return new UserReturnModel
     {
         Url = _UrlHelper.Link("GetUserById", new { id = appUser.Id }),
         Id = appUser.Id,
         UserName = appUser.UserName,
         FullName = string.Format("{0}", appUser.FullName),
         Email = appUser.Email,
         EmailConfirmed = appUser.EmailConfirmed,
         Roles = _AppUserManager.GetRolesAsync(appUser.Id).Result,
         Claims = _AppUserManager.GetClaimsAsync(appUser.Id).Result
     };
 }
        public async Task<IHttpActionResult> CreateUser(CreateUserBindingModel createUserModel)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            var user = new ApplicationUser()
            {
                UserName = createUserModel.Username,
                Email = createUserModel.Email,
                FullName = createUserModel.FullName,
            };

            IdentityResult addUserResult = await this.AppUserManager.CreateAsync(user, createUserModel.Password);

            if (!addUserResult.Succeeded)
            {
                return GetErrorResult(addUserResult);
            }

            string code = await this.AppUserManager.GenerateEmailConfirmationTokenAsync(user.Id);

            var callbackUrl = new Uri(Url.Link("ConfirmEmailRoute", new { userId = user.Id, code = code }));
            
            try
            {
                await this.AppUserManager.SendEmailAsync(user.Id, "Confirm your account", @"Please confirm your account by clicking <a href="" + callbackUrl"" + "">here</a>");

            }
            catch(Exception ex)
            {
                return Ok("Email not sent :" + ex);
            }
            
            Uri locationHeader = new Uri(Url.Link("GetUserById", new { id = user.Id }));

            return Created(locationHeader, TheModelFactory.Create(user));
           // return Ok();
        }