Question

In my Desktop application, I want to read the Wall posts,Messages, Like counts etc for a particular Facebook page (not for a facebook user)

I went through this post get user data(on stackoverflow). I want to achieve the same thing but for a FB page.

I am ready to create a facebook application to achieve this and have the user to give permission to pull the data.

Please advice on the above.

Answer 1

You need an access token to get page data from Facebook.
First get an access token using below URL with your facebook application’s parameters:

https://graph.facebook.com/oauth/access_token?type=client_cred&client_id={yourappid}&client_secret={yourappscret}

Then you can call the Facebook Graph API with returning token

General: https://graph.facebook.com/wikipedia?access_token={token}

Posts: https://graph.facebook.com/wikipedia/posts?access_token={token}

An example code would be;

class Program
{
    static void Main(string[] args)
    {
        var client = new WebClient();

        string oauthUrl = string.Format("https://graph.facebook.com/oauth/access_token?type=client_cred&client_id={0}&client_secret={1}", "appid", "appsecret");

        string accessToken = client.DownloadString(oauthUrl).Split('=')[1];

        string pageInfo = client.DownloadString(string.Format("https://graph.facebook.com/wikipedia?access_token={0} ", accessToken));
        string pagePosts = client.DownloadString(string.Format("https://graph.facebook.com/wikipedia/posts?access_token={0} ", accessToken));
    }
}