Our application uses Firebase. For authenification in the application, we use Facebook. With the help of the Facebook SDK I get the user's friends The question is, can I only ask for "new friends"? For example, I requested a list of all friends on October 25, and to not ask the list of all friends of the user to be next time, I send timestamp parameters from when I need information about user's friends. I read a lot of posts and searched for information, but did not find anything useful in my situation. Thank you.
func getFriends() {
DispatchQueue.global(qos: .background).async {
let params = ["fields": "id, first_name, last_name, name, email, picture"]
let graphRequest = FBSDKGraphRequest(graphPath: "/me/friends", parameters: params)
let connection = FBSDKGraphRequestConnection()
connection.add(graphRequest, completionHandler: { (connection, result, error) in
if error == nil {
guard let userData = result as? [String : Any] else { return }
guard let jsonData = userData["data"] as? [[String : Any]] else { return }
debugPrint("facebook data", jsonData)
do {
let data = try JSONSerialization.data(withJSONObject: jsonData, options: JSONSerialization.WritingOptions.prettyPrinted)
let jsonDecoder = JSONDecoder()
let friends = try jsonDecoder.decode(Array<FacebookFriendModel>.self, from: data)
debugPrint("friends", friends.count)
self.saveFriends(friends)
} catch {
debugPrint(error.localizedDescription)
}
} else {
print("Error Getting Friends \(error?.localizedDescription ?? "")");
}
})
connection.start()
}
}
The question is, can I only ask for "new friends"? For example, I requested a list of all friends on October 25, and to not ask the list of all friends of the user to be next time, I send timestamp parameters from when I need information about user's friends.
No, that kind of functionality is simply not available.
Facebook deliberately does not provide the information when two users became friends.