public async Task <IAuthenticatedUser> ValidateAuthAsync(string authorizationId, string oauthVerifier)
{
var twitterAuth = await FindAndDeleteAsync(authorizationId);
if (string.IsNullOrEmpty(oauthVerifier))
{
return(null);
}
return(_twitterClient.GetAuthenticatedUser(oauthVerifier, twitterAuth.AuthorizationKey, twitterAuth.AuthorizationSecret));
}