public ActionResult <RegistrationResponse> Register(RegistrationRequest request)
{
var appUser = this.mapper.Map <AppUser>(request);
/* register user: create the entity in database, hash the password, etc. */
var userDetail = this.authService.Register(appUser);
var token = JwtHelper.CreateFromUser(appUser);
var response = new RegistrationResponse(userDetail, token);
return(response);
}