public UserViewModel Authenticate(string email, string password, out string token)
{
var user = _userRepository.GetByEmail(email);
if (user == null)
{
throw new ArgumentException($"No user with email: {email}");
}
var hasPassword = Hashing.sha256(password);
if (user.Password != hasPassword)
{
token = null;
return(null);
}
token = _jwtGenerator.Generator(user);
var viewUser = _mapper.Map <UserViewModel>(user);
return(viewUser);
}