Facebook API : Data dump of Comment/Like Data - facebook

Question

Here is my code:
string code = Request.QueryString["code"];
string appId = "x";
string appSecret = "x";
if (code == "" || code == null)
{
//request for authentication
Response.Redirect("https://graph.facebook.com/oauth/authorize?client_id=" + appId + "&redirect_uri=http://localhost:62543/&scope=email,read_stream");
}
else
{
var fb = new MyFB();
fb.ApplicationSecret = appSecret;
fb.ApplicationID = appId;
string accessToken = fb.GetAccessToken(code);
fb.AccessToken = accessToken;
var fbc = new FacebookClient(accessToken);
dynamic streams = fbc.Query("select post_id from stream where permalink = 'http://www.facebook.com/kevin.clough/posts/882439437244'");
Response.Write(streams.Count);
dynamic results = fbc.Query("select comments, likes from Post where id = " + streams.post_id);
foreach (dynamic comment in results.comments)
{
Response.Write(comment.from.name + ", " + comment.message + "<br/>");
}
}
Getting this error "A session cannot be used when querying the stream table with a viewer_id that is a different from the session owner."
How do I authorize this session to view my own data?

Answer 1

So the first problem I see is that the query is not valid. You have:
select post_id from stream
where permalink = 'http://www.facebook.com/kevin.clough/posts/882439437244'
Per the Facebook documentation here you can only query the stream table using the columns post_id, app_id, source_id, filter_key, and xid.
So you should change your first query to this (using post ID '19292868552_118464504835613' as an example):
select post_id from stream where post_id = '19292868552_118464504835613'
Alternatively, you could do the same thing with the graph using the post id:
dyanmic post1 = fbc.Get("19292868552_118464504835613");
Your second query is wrong mainly because you are querying a table that doesn't exist.
select comments, likes from Post where id = " + streams.post_id
There is no such FQL table 'Post'. I am not sure what the goal of this is, but if you want to get the likes and comments I think it would be easier to use the Graph API.
Comments:
dynamic comments = fbc.Get("19292868552_118464504835613/comments");
Likes:
dynamic likes = fbc.Get("19292868552_118464504835613/likes");
Here is Facebook's documentation on the Post Graph API: http://developers.facebook.com/docs/reference/api/post/
EDIT:
To determine the stream items of a user you will want to read their feed. You can do this using the Graph API also.
dynamic feed = fbc.Get("me/feed");
foreach (dynamic post in feed.data) {
var post_id = post.id;
}
This will get you the most recent posts of the user. From there you can loop through them to find the one you want to get more details.