public async Task <object> RegisterUser(RegisterUser registerUser)
{
registerUser.UserName = registerUser.UserName.ToLower();
if (await authRepo.DoesUserExist(registerUser.UserName))
{
throw new Exception();
}
var userToBeCreated = mapper.Map <AppUser>(registerUser);
var createdUser = await authRepo.Register(userToBeCreated, registerUser.Password);
var userToReturn = mapper.Map <DetailedUser>(createdUser);
return(userToReturn);
}