Question

I am using Facebook.dll i.s FacebookClient , Mainly I want to read Facebook user mail box I have auth token saved in db.

1. Select messages (all) from mail box where I can mention start date and end date
2. Save all messages in db

I have used

dynamic result = objFacebookClient.Get("fql",
                     new { q = "SELECT message_id, author_id, body, created_time FROM message WHERE thread_id IN (SELECT thread_id FROM thread WHERE folder_id = 0)" });

Is it possible get result as

• Message – Content of message
• Send t o- Sender name and id
• Receive By – Name and id
• Create Date – Message create date

Code is here

dynamic result = objFacebookClient.Get("fql",
   new { q = "SELECT message_id, author_id, body, created_time FROM message WHERE thread_id IN (SELECT thread_id FROM thread WHERE folder_id = 0)" });
List<Model.FacebookUserMessageInfo> objFacebookMessageList = new List<Model.FacebookUserMessageInfo>();
if (result != null)
{
    Model.FacebookUserMessageInfo objFacebookMessage = null;
    var values = result.Values;
    var TotalResult = (((System.Collections.Generic.Dictionary<string, object>.ValueCollection)values).ToList()[0]);
    var TotalMessagesData = (JsonArray)TotalResult;
    if (TotalMessagesData != null)
    {
        foreach (var Messages in TotalMessagesData)
        {
            objFacebookMessage = new Model.FacebookUserMessageInfo();
            objFacebookMessage.MessageText = (((JsonObject)Messages)["body"]).ToString();
            objFacebookMessage.ActionUserID = Convert.ToInt64(((JsonObject)Messages)["author_id"]);
            if (objFacebookMessage.ActionUserID == CurrentUserId)
            {
                objFacebookMessage.MessageType = Core.Enum.FacebookMessageType.Sent.ToString();
            }
            else
            {
                objFacebookMessage.MessageType = Core.Enum.FacebookMessageType.Receive.ToString();
            }
            objFacebookMessage.FacebookUserId = FacebookUserId;
            var MessageSecond = (((JsonObject)Messages)["created_time"]).ToString();
            var dateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
            objFacebookMessage.CreatedDate = dateTime.AddSeconds(double.Parse(MessageSecond));
            objFacebookMessageList.Add(objFacebookMessage);
        }
    }
}

Thanks in advance

Answer 1

I got my solution

public class Facebook
{
    #region Private Properties

    private string ClientId = System.Configuration.ConfigurationManager.AppSettings["ClientId"];
    private string ClientSecret = System.Configuration.ConfigurationManager.AppSettings["ClientSecret"];

    #endregion

    #region Public Methods

    public string GetLongLifeAccessToken(string ExistingToken)
    {
        try
        {
            string Data = string.Empty;
            string url = string.Format("https://graph.facebook.com/oauth/access_token?client_id={0}&client_secret={1}&grant_type=fb_exchange_token&fb_exchange_token={2} ",
                            ClientId, ClientSecret, ExistingToken);
            System.Net.HttpWebRequest request = System.Net.WebRequest.Create(url) as System.Net.HttpWebRequest;
            using (System.Net.HttpWebResponse response = request.GetResponse() as System.Net.HttpWebResponse)
            {
                System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream());
                Data = sr.ReadToEnd();
                Data = HttpUtility.ParseQueryString(Data)["access_token"];
            }
            return Data;
        }
        catch (Exception ex)
        {

            throw new Exception(ex.Message);
        }

    }

    public List<Model.FacebookUserMessageInfo> ReadFacebookMailbox(string AuthToken, long? CurrentUserDefaultFacebookId, DateTime? LastProcessedDate, DateTime CurrentDate, int FacebookUserId)
    {
        try
        {

            FacebookClient objFacebookClient;
            List<Model.FacebookUserMessageInfo> objFacebookMessageList;
            objFacebookClient = new FacebookClient(AuthToken);
            try
            {
                objFacebookClient.Get("me");
            }
            catch (Exception ex)
            {
                throw new Exception(ErrorType.UnableToAuthorizFacebookUser.ToString());
            }
            TimeSpan t = LastProcessedDate.Value - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
            int timestamp = (int)t.TotalSeconds;

            dynamic result = objFacebookClient.Get("fql",
               new { q = "SELECT message_id, author_id, viewer_id, body, created_time FROM message WHERE thread_id IN (SELECT thread_id FROM thread WHERE folder_id = 0) AND created_time >= " + timestamp.ToString() });
            objFacebookMessageList = new List<Model.FacebookUserMessageInfo>();
            if (result != null)
            {
                Model.FacebookUserMessageInfo objFacebookMessage = null;
                var values = result.Values;
                var TotalResult = (((System.Collections.Generic.Dictionary<string, object>.ValueCollection)values).ToList()[0]);
                var TotalMessagesData = (JsonArray)TotalResult;
                if (TotalMessagesData != null)
                {
                    foreach (var Messages in TotalMessagesData)
                    {
                        /*author_id =   The ID of the user who wrote this message.*/
                        /*viewer_id =   The ID of the user whose Inbox you are querying*/
                        objFacebookMessage = new Model.FacebookUserMessageInfo();
                        objFacebookMessage.MessageText = (((JsonObject)Messages)["body"]).ToString();
                        long author_id = Convert.ToInt64(((JsonObject)Messages)["author_id"]);
                        long viewer_id = Convert.ToInt64(((JsonObject)Messages)["viewer_id"]);
                        if (author_id == viewer_id)
                        {
                            objFacebookMessage.MessageType = Core.Enum.FacebookMessageType.Sent.ToString();
                        }
                        else
                        {
                            objFacebookMessage.MessageType = Core.Enum.FacebookMessageType.Receive.ToString();

                        }
                        objFacebookMessage.ActionUserID = author_id;
                        objFacebookMessage.FacebookUserId = FacebookUserId;
                        var MessageSecond = (((JsonObject)Messages)["created_time"]).ToString();
                        var dateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
                        objFacebookMessage.CreatedDate = dateTime.AddSeconds(double.Parse(MessageSecond));
                        objFacebookMessageList.Add(objFacebookMessage);
                    }
                }

            }
            if (objFacebookMessageList.Count > 0)
            {
                objFacebookMessageList = objFacebookMessageList.Where(fm => fm.CreatedDate >= LastProcessedDate && fm.CreatedDate <= CurrentDate).ToList();

                objFacebookMessageList.ForEach(item =>
                {
                    var Auther = objFacebookClient.Get("https://graph.facebook.com/" + item.ActionUserID.ToString());
                    if (Auther != null)
                    {
                        item.ActionUserName = ((JsonObject)Auther)["name"].ToString();
                    }
                    else
                    {
                        item.ActionUserName = null;
                    }
                });

            }
            return objFacebookMessageList;



        }
        catch (Exception ex)
        {

            throw new Exception(ex.Message);
        }

    }

    #endregion
}