How do I check if .Post has send successfully in Facebook C# sdk?
//...
FacebookClient fbClient = new FacebookClient(appId, appSecret);
fbClient.AccessToken = "...";
string to = "user id";
dynamic result = fbClient.Post(String.Format("{0}/feed", to), parameters);

{
  "error_code": 200,
  "error_msg": "The user hasn't authorized the application to perform this action",
  "request_args": [
    {
      "key": "method",
      "value": "stream.publish"
    },
    {
      "key": "access_token",
      "value": "AAAC9okD6ZA7ABABhvJOZBQvUE2OsuHLKEkqlvKKkPDNB9kHfF55DqgKF2raHmSaUSgkpvLtgWniM5CFnu5mxaGODLqvwVz9zBNd1Jd6AZDZD"
    },
    {
      "key": "format",
      "value": "json"
    }
  ]
}