/// <summary>
/// Get Application Access Token
/// </summary>
/// <returns></returns>
public string GetAppAccessToken()
{
var fb = new FacebookOAuthClient { AppId = "340791049284352", AppSecret = "c46526d851aaf7dd547a63ae332d3e49" };
dynamic result = fb.GetApplicationAccessToken();
var appAccessToken = result.access_token;
return appAccessToken.ToString();
}