I am trying to get my friend name and ids with Graph API v2.0, but data returns empty:
{
"data": [
]
}
When I was using v1.0, everything was OK with the following request:
FBRequest* friendsRequest = [FBRequest requestForMyFriends];
[friendsRequest startWithCompletionHandler: ^(FBRequestConnection *connection,
NSDictionary* result,
NSError *error) {
NSArray* friends = [result objectForKey:@"data"];
NSLog(@"Found: %i friends", friends.count);
for (NSDictionary<FBGraphUser>* friend in friends) {
NSLog(@"I have a friend named %@ with id %@", friend.name, friend.id);
}
}];
But now I cannot get friends!
This question is related to
facebook
facebook-graph-api
facebook-ios-sdk
facebook-graph-api-v2.0
As Simon mentioned, this is not possible in the new Facebook API. Pure technically speaking you can do it via browser automation.
Sample implementation using WatiN:
class FacebookUser
{
public string Name { get; set; }
public long Id { get; set; }
}
public IList<FacebookUser> GetFacebookFriends(string email, string password, int? maxTimeoutInMilliseconds)
{
var users = new List<FacebookUser>();
Settings.Instance.MakeNewIeInstanceVisible = false;
using (var browser = new IE("https://www.facebook.com"))
{
try
{
browser.TextField(Find.ByName("email")).Value = email;
browser.TextField(Find.ByName("pass")).Value = password;
browser.Form(Find.ById("login_form")).Submit();
browser.WaitForComplete();
}
catch (ElementNotFoundException)
{
// We're already logged in
}
browser.GoTo("https://www.facebook.com/friends");
var watch = new Stopwatch();
watch.Start();
Link previousLastLink = null;
while (maxTimeoutInMilliseconds.HasValue && watch.Elapsed.TotalMilliseconds < maxTimeoutInMilliseconds.Value)
{
var lastLink = browser.Links.Where(l => l.GetAttributeValue("data-hovercard") != null
&& l.GetAttributeValue("data-hovercard").Contains("user.php")
&& l.Text != null
).LastOrDefault();
if (lastLink == null || previousLastLink == lastLink)
{
break;
}
var ieElement = lastLink.NativeElement as IEElement;
if (ieElement != null)
{
var htmlElement = ieElement.AsHtmlElement;
htmlElement.scrollIntoView();
browser.WaitForComplete();
}
previousLastLink = lastLink;
}
var links = browser.Links.Where(l => l.GetAttributeValue("data-hovercard") != null
&& l.GetAttributeValue("data-hovercard").Contains("user.php")
&& l.Text != null
).ToList();
var idRegex = new Regex("id=(?<id>([0-9]+))");
foreach (var link in links)
{
string hovercard = link.GetAttributeValue("data-hovercard");
var match = idRegex.Match(hovercard);
long id = 0;
if (match.Success)
{
id = long.Parse(match.Groups["id"].Value);
}
users.Add(new FacebookUser
{
Name = link.Text,
Id = id
});
}
}
return users;
}
Prototype with implementation of this approach (using C#/WatiN) see https://github.com/svejdo1/ShadowApi. It is also allowing dynamic update of Facebook connector that is retrieving a list of your contacts.
Facebook has revised their policies now. You can’t get the whole friendlist anyway if your app does not have a Canvas implementation and if your app is not a game. Of course there’s also taggable_friends, but that one is for tagging only.
You will be able to pull the list of friends who have authorised the app only.
The apps that are using Graph API 1.0 will be working till April 30th, 2015 and after that it will be deprecated.
See the following to get more details on this:
Although Simon Cross's answer is accepted and correct, I thought I would beef it up a bit with an example (Android) of what needs to be done. I'll keep it as general as I can and focus on just the question. Personally I wound up storing things in a database so the loading was smooth, but that requires a CursorAdapter and ContentProvider which is a bit out of scope here.
I came here myself and then thought, now what?!
The Issue
Just like user3594351, I was noticing the friend data was blank. I found this out by using the FriendPickerFragment. What worked three months ago, no longer works. Even Facebook's examples broke. So my issue was 'How Do I create FriendPickerFragment by hand?
What Did Not Work
Option #1 from Simon Cross was not strong enough to invite friends to the app. Simon Cross also recommended the Requests Dialog, but that would only allow five requests at a time. The requests dialog also showed the same friends during any given Facebook logged in session. Not useful.
What Worked (Summary)
Option #2 with some hard work. You must make sure you fulfill Facebook's new rules: 1.) You're a game 2.) You have a Canvas app (Web Presence) 3.) Your app is registered with Facebook. It is all done on the Facebook developer website under Settings.
To emulate the friend picker by hand inside my app I did the following:
Details
The AsynchTask
private class DownloadFacebookFriendsTask extends AsyncTask<FacebookFriend.Type, Boolean, Boolean> {
private final String TAG = DownloadFacebookFriendsTask.class.getSimpleName();
GraphObject graphObject;
ArrayList<FacebookFriend> myList = new ArrayList<FacebookFriend>();
@Override
protected Boolean doInBackground(FacebookFriend.Type... pickType) {
//
// Determine Type
//
String facebookRequest;
if (pickType[0] == FacebookFriend.Type.AVAILABLE) {
facebookRequest = "/me/friends";
} else {
facebookRequest = "/me/invitable_friends";
}
//
// Launch Facebook request and WAIT.
//
new Request(
Session.getActiveSession(),
facebookRequest,
null,
HttpMethod.GET,
new Request.Callback() {
public void onCompleted(Response response) {
FacebookRequestError error = response.getError();
if (error != null && response != null) {
Log.e(TAG, error.toString());
} else {
graphObject = response.getGraphObject();
}
}
}
).executeAndWait();
//
// Process Facebook response
//
//
if (graphObject == null) {
return false;
}
int numberOfRecords = 0;
JSONArray dataArray = (JSONArray) graphObject.getProperty("data");
if (dataArray.length() > 0) {
// Ensure the user has at least one friend ...
for (int i = 0; i < dataArray.length(); i++) {
JSONObject jsonObject = dataArray.optJSONObject(i);
FacebookFriend facebookFriend = new FacebookFriend(jsonObject, pickType[0]);
if (facebookFriend.isValid()) {
numberOfRecords++;
myList.add(facebookFriend);
}
}
}
// Make sure there are records to process
if (numberOfRecords > 0){
return true;
} else {
return false;
}
}
@Override
protected void onProgressUpdate(Boolean... booleans) {
// No need to update this, wait until the whole thread finishes.
}
@Override
protected void onPostExecute(Boolean result) {
if (result) {
/*
User the array "myList" to create the adapter which will control showing items in the list.
*/
} else {
Log.i(TAG, "Facebook Thread unable to Get/Parse friend data. Type = " + pickType);
}
}
}
The FacebookFriend class I created
public class FacebookFriend {
String facebookId;
String name;
String pictureUrl;
boolean invitable;
boolean available;
boolean isValid;
public enum Type {AVAILABLE, INVITABLE};
public FacebookFriend(JSONObject jsonObject, Type type) {
//
//Parse the Facebook Data from the JSON object.
//
try {
if (type == Type.INVITABLE) {
//parse /me/invitable_friend
this.facebookId = jsonObject.getString("id");
this.name = jsonObject.getString("name");
// Handle the picture data.
JSONObject pictureJsonObject = jsonObject.getJSONObject("picture").getJSONObject("data");
boolean isSilhouette = pictureJsonObject.getBoolean("is_silhouette");
if (!isSilhouette) {
this.pictureUrl = pictureJsonObject.getString("url");
} else {
this.pictureUrl = "";
}
this.invitable = true;
} else {
// Parse /me/friends
this.facebookId = jsonObject.getString("id");
this.name = jsonObject.getString("name");
this.available = true;
this.pictureUrl = "";
}
isValid = true;
} catch (JSONException e) {
Log.w("#", "Warnings - unable to process Facebook JSON: " + e.getLocalizedMessage());
}
}
}
If you want to get the friends list from Facebook, you need to submit your app for review in Facebook. See some of the Login Permissions:
Here are the two steps:
1) First your app status is must be in Live
2) Get required permissions form Facebook.
Go to the apps page and select your app
Select status in the top right in Dashboard.
Submit privacy policy URL
Select category
Now our app is in Live status.
One step is completed.
First send required requests.
Example: user_friends, user_videos, user_posts, etc.
Second, go to the Current Request page
Example: user_events
Submit all details
Like this submit for all requests (user_friends , user_events, user_videos, user_posts, etc.).
Finally submit your app for review.
If your review is accepted from Facebook's side, you are now eligible to read contacts, etc.
Try /me/taggable_friends?limit=5000
using your JavaScript code
Or
try the Graph API:
https://graph.facebook.com/v2.3/user_id_here/taggable_friends?access_token=
In the Facebook SDK Graph API v2.0 or above, you must request the user_friends permission from each user in the time of Facebook login since user_friends is no longer included by default in every login; we have to add that.
Each user must grant the user_friends permission in order to appear in the response to /me/friends.
let fbLoginManager : FBSDKLoginManager = FBSDKLoginManager()
fbLoginManager.loginBehavior = FBSDKLoginBehavior.web
fbLoginManager.logIn(withReadPermissions: ["email","user_friends","public_profile"], from: self) { (result, error) in
if (error == nil) {
let fbloginresult : FBSDKLoginManagerLoginResult = result!
if fbloginresult.grantedPermissions != nil {
if (fbloginresult.grantedPermissions.contains("email")) {
// Do the stuff
}
else {
}
}
else {
}
}
}
So at the time of Facebook login, it prompts with a screen which contain all the permissions:
If the user presses the Continue button, the permissions will be set. When you access the friends list using Graph API, your friends who logged into the application as above will be listed
if ((FBSDKAccessToken.current()) != nil) {
FBSDKGraphRequest(graphPath: "/me/friends", parameters: ["fields" : "id,name"]).start(completionHandler: { (connection, result, error) -> Void in
if (error == nil) {
print(result!)
}
})
}
The output will contain the users who granted the user_friends permission at the time of login to your application through Facebook.
{
data = (
{
id = xxxxxxxxxx;
name = "xxxxxxxx";
}
);
paging = {
cursors = {
after = xxxxxx;
before = xxxxxxx;
};
};
summary = {
"total_count" = 8;
};
}
Source: Stackoverflow.com