/// <summary>
/// Returns the identifiers for the requested users' Mutual Facebook friends.
/// </summary>
/// <example>
/// <code>
/// private static void RunDemoAsync()
/// {
/// Api api = new Api(new DesktopSession(Constants.ApplicationKey, Constants.ApplicationSecret, Constants.SessionSecret, Constants.SessionKey));
/// api.Friends.GetMutualFriendsAsync(Constants.Friend_UserId1, Constants.UserId, AsyncDemoCompleted, null);
/// }
///
/// private static void AsyncDemoCompleted(IList<long> result, Object state, FacebookException e)
/// {
/// var actual = result;
/// }
/// </code>
/// </example>
/// <param name="target_uid">The user ID of one of the target user whose mutual friends you want to retrieve.</param>
/// <param name="source_uid">The user ID of the other user for which you are getting mutual friends of. Defaults to the current session user.</param>
/// <param name="callback">The AsyncCallback delegate</param>
/// <param name="state">An object containing state information for this asynchronous request</param>
/// <returns>This method returns an List of user IDs of the mutual friends, or an error code.</returns>
/// <remarks>The first array specifies one half of each pair, the second array the other half; therefore, they must be of equal size.</remarks>
public void GetMutualFriendsAsync(long target_uid, long? source_uid, GetMutualFriendsCallback callback, Object state)
{
GetMutualFriends(target_uid, source_uid, true, callback, state);
}
private List<long> GetMutualFriends(long target_uid, long? source_uid, bool isAsync, GetMutualFriendsCallback callback, Object state)
{
var parameterList = new Dictionary<string, string> { { "method", "facebook.friends.getMutualFriends" } };
Utilities.AddRequiredParameter(parameterList, "target_uid", target_uid);
Utilities.AddOptionalParameter(parameterList, "source_uid", source_uid);
if (isAsync)
{
SendRequestAsync<friends_getMutualFriends_response, IList<long>>(parameterList, !string.IsNullOrEmpty(Session.SessionKey), new FacebookCallCompleted<IList<long>>(callback), state, "uid");
return null;
}
#if !SILVERLIGHT
var response = SendRequest<friends_getMutualFriends_response>(parameterList, Session is DesktopSession || source_uid == null);
#else
var response = SendRequest<friends_getMutualFriends_response>(parameterList, source_uid == null);
#endif
return response == null ? null : response.uid;
}
/// <summary>
/// Returns the identifiers for the requested users' Mutual Facebook friends.
/// </summary>
/// <example>
/// <code>
/// private static void RunDemoAsync()
/// {
/// Api api = new Api(new DesktopSession(Constants.ApplicationKey, Constants.ApplicationSecret, Constants.SessionSecret, Constants.SessionKey));
/// api.Friends.GetMutualFriendsAsync(Constants.UserId, AsyncDemoCompleted, null);
/// }
///
/// private static void AsyncDemoCompleted(IList<long> result, Object state, FacebookException e)
/// {
/// var actual = result;
/// }
/// </code>
/// </example>
/// <param name="target_uid">The user ID of one of the target user whose mutual friends you want to retrieve.</param>
/// <param name="callback">The AsyncCallback delegate</param>
/// <param name="state">An object containing state information for this asynchronous request</param>
/// <returns>This method returns an List of user IDs of the mutual friends, or an error code.</returns>
/// <remarks>The first array specifies one half of each pair, the second array the other half; therefore, they must be of equal size.</remarks>
public void GetMutualFriendsAsync(long target_uid, GetMutualFriendsCallback callback, Object state)
{
GetMutualFriendsAsync(target_uid, null, callback, state);
}
