All the answers that was available are too old tried different ways but not able to get any information related to facebook logged in user friends.
let loginManager = LoginManager()
loginManager.logIn(permissions: ["public_profile", "email", "user_friends"], from: loginScreen) { (result, error) in
if (result?.token != nil) {
self.didLoginWithFacebook()
}
}
the above set "user_friends" permission is not getting asked from the user and also not coming back in granted or denied permission.
And also using
let graphRequest = GraphRequest(graphPath:"me/friends", parameters: ["fields":"id,email,last_name,first_name,picture"], tokenString: accessToken.tokenString, version: nil, httpMethod: .get)
graphRequest.start { (connection, result, error) in
guard let result = result as? [String:String] else{
print("Facebook request user error")
return
}
}
returning empty data fields
I want to know is it even possible to get friends or not ?
Even we don't get friends after asking the user for permission ?
Getting error when trying to login with admin user
According to
https://developers.facebook.com/docs/graph-api/reference/user/friends/
This api returns only
Represents a collection of Users who are friends of the app User. Only
friends who have installed the app and who have granted the app the
user_friends permission will be included.
So, if You don't have any friends who also installed your app and granted friends permission -> response still be empty
Try with an app admin, regular users will not be able to use the permission if it is not approved by Facebook yet
There is a missing apostrophe in your code, right after user_friends:
permissions: ["public_profile", "email","user_friends"...
Related
I am trying to link Facebook and Google. So, the scenario is this:
I have already authenticated with Google. So, now I am logging in Facebook, having same email id which was used earlier with Google. So, I get the error of account Exists with a different credential. And, I did this:
func fetchUserInfo()
{
Auth.auth().signInAndRetrieveData(with:FacebookAuthProvider.credential(withAccessToken: (FBSDKAccessToken.current().tokenString)!), completion: { (result, error) in
if let error = AuthErrorCode.init(rawValue: error!._code)
{
switch error
{
case .accountExistsWithDifferentCredential :
let credential = FacebookAuthProvider.credential(withAccessToken: (FBSDKAccessToken.current()?.tokenString)!)
Auth.auth().currentUser?.linkAndRetrieveData(with: credential, completion: { (result, error) in
if let error = error
{
print("Unable to link Facebook Account", error.localizedDescription)
}
else
{
NavigationHelper.shared.moveToHome(fromVC: self)
}
})
default: break
}
}
else
{
GeneralHelper.shared.keepLoggedIn()
if let currentUser = Auth.auth().currentUser
{
print(currentUser.email!)
}
NavigationHelper.shared.moveToHome(fromVC: self)
}
})
}
Here Firebase Documentation says that we need to just link the currentUser and retrieve data. But, the issue I am facing is that the currentUser is always nil. So, how can I get the current user? I have already tried this months ago and then I was able to link Facebook, Google and Email. Do, I need to signInAndRetrieve the data from Google in order to get the currentUser?
The Error "account Exists with a different credential" is because, by default, Firebase do not allow to use the same email address for two (or more) different Sing In methods. You need to enable this option.
1 - Go to Authentication > Sign-in method
2 - Scroll down to Advanced: Multiple accounts per email address
3 - Change the option to Allow creation of multiple accounts with the same email address
FYI: You need to do whole login process for each Sign In method in your app. Each method has is own credentials.
Hope this helps.
When a user logs into the app using Facebook, I am able to capture and display their full name; however, neither email nor phone number is coming across. I have tried both the "One account per email address" as well as "Multiple accounts per email". I have tested it with an account whose email address is definitely not already registered in Firebase. What am I missing such that email/phone are not being captured? This all does work with Google accounts.
let name = Auth.auth().currentUser?.displayName // works!
let email = Auth.auth().currentUser?.email // nil- why?
let phone = Auth.auth().currentUser?.phoneNumber // nil -why?
The login process, which is standard Firebase w/ Facebook, looks like this:
func loginButton(_ loginButton: FBSDKLoginButton!, didCompleteWith result: FBSDKLoginManagerLoginResult!, error: Error!)
{
if let error = error
{
print(error.localizedDescription)
}
else
{
if FBSDKAccessToken.current() != nil
{
let credential = FacebookAuthProvider.credential(withAccessToken: FBSDKAccessToken.current().tokenString)
Auth.auth().signIn(with: credential) { (user, error) in
if let error = error
{
print (error.localizedDescription)
}
}
}
}
}
To update based on comments below. The following also produces a nil email and phone when inspecting the contents of userInfo. I understand the phone might just be that way, but it seems the email was supposed to work.
let userInfo = Auth.auth().currentUser?.providerData
The top level phoneNumber currentUser.phoneNumber is only for Firebase verified phone numbers. If you have that Facebook phone number, you can use the currentUser.updatePhoneNumber API to verify that number (you will need to go through the whole flow). Otherwise, you can wait for the upcoming Admin node.js API to set phone numbers with Admin privileges on existing users: https://github.com/firebase/firebase-admin-node/commit/68563c4b2c8128fbc45fc65bad3f6730d320b539
As for the email, in the case of "multiple accounts per email" you need to set it yourself via currentUser.updateEmail. You can get the Facebook email from currentUser.providerData which contains the Facebook provider data.
I have an issue when getting mutual likes with Facebook Graph API. The context is the following:
userA is the requester from an iOS application
userA and userB have granted "user_likes" permission both from the iOS app
userA and userB are not Facebook friends
My app Swift code for this part is the following:
self.FBLoginButton.readPermissions = ["public_profile", "email", "user_friends", "user_birthday", "user_about_me", "user_likes"]
...
...
let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: userBFBid, parameters: ["fields": "context.fields(mutual_likes).limit(10)"])
graphRequest.startWithCompletionHandler({ (connection, result, error) -> Void in
if ((error) != nil) {
print("Error: \(error)")
} else {
print("res: \(result)")
}
})
The result is the following:
res: {
context = {
id = dXNlcl9jb250ZAXh0OgGQg20zLjrZAswOnuX6*******;
"mutual_likes" = {
data = (
);
summary = {
"total_count" = 0;
};
};
};
id = 101532998**********;
}
As you can see, the mutual likes are not returned.
I made the same request with userA and userC which are Facebook friends, and that works correctly, all their mutual likes are returned.
Again: userA, userB and userC have the app installed and granted the user_likes permission.
Any idea to fix it and to get mutual_likes with two users which are not Facebook friends?
I finally found the issue.
First of all: user likes must be visible by public in FB user account privacy configuration to be accessible by the API even if the user_likes permission is granted.
Source: Facebook graph api empty data when getting user likes
Secondly, if the users are not friends on Facebook, the request must also include the parameter appsecret_proof (https://developers.facebook.com/docs/graph-api/securing-requests). So the request must be performed from your server and not from your app for safety reason. Source: https://developers.facebook.com/bugs/101463963524794/
Hope that helps someone one day!
I am working on an app that logs in to Facebook using the FBSDK in Swift. I also have been able to make requests to get my wall posts by using
var request: FBSDKGraphRequest
request = FBSDKGraphRequest(graphPath: "me/feed"), parameters: ["access_token": FBSDKAccessToken.currentAccessToken().tokenString], HTTPMethod:"GET")
request.startWithCompletionHandler({(connection, result, error) -> Void in
if error != nil
{
}
else
{
}
})
but I have been unable to get back results after I used the following to log out
var deletePermission = FBSDKGraphRequest(graphPath: "me/permissions/", parameters: nil, HTTPMethod: "DELETE")
deleterPermission.startWithCompletionHandler({(connection, result, error) -> Void in
if error != nil
{
}
else
{
}
})
When I log back in to the app, I am again asked to accept permissions, but when I check the expiration date for the current token with FBSDKAccessToken.currentAccessToken().expirationDate I get a date before I tried HTTPMethod: DELETE.
So I was wondering how it would be possible to get back permission for your app or renew my access token because I don't think it's working by logging back in and accepting permissions. I have used the following to log out of the app
// Log out of the database I'm using
try! FIRAuth.auth()!.signOut()
// Log out of Facebook, clear current token and logged user
FBSDKAccessToken.setCurrentAccessToken(nil)
FBSDKProfile.setCurrentProfile(nil)
I am also using `FBSDKLoginButton()' and setting the following permissions to log in
var loginButton = FBSDKLoginButton()
loginButton.readPermissions = ["public_profile", "user_friends", "user_about_me", "user_posts"]
loginButton.delegate = self
....
func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!) {
if error == nil
{
let credential = FIRFacebookAuthProvider.credentialWithAccessToken(FBSDKAccessToken.currentAccessToken().tokenString)
// Firebase authentication
FIRAuth.auth()?.signInWithCredential(credential) {(user, error) in
if error == nil
{
// No error found get user credentials through Firebase
}
else
{
}
}}
But again after logging in and going to another ViewController by segue and I check the current token to get "me/feed" I am not getting a reply and the token's expiration date has expired. Would it be easier to create a new app in Facebook developer and set it up in Xcode or is there something I can do to get my user posts?
I am using FBSDK in my Swift iOS application and currently I am trying to retrieve the list of friends who also use my app. I have two-three people who should show up but whenever I search the graphrequest result for friends it returns nil..
let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters: nil)
graphRequest.startWithCompletionHandler({ (connection, result:AnyObject!, error) -> Void in
if ((error) != nil)
{
// Process error
println("Error: \(error)")
}
else
{
//get Facebook ID
let faceBookID: NSString = result.valueForKey("id") as NSString
//get username
let userName : NSString = result.valueForKey("name") as NSString
//get facebook friends who use app
let friendlist: AnyObject = result.valueForKey("friends") as AnyObject
}
I have the "email", "user_friends", and "public_profile" permissions which should be enough to retrieve this information. Any Ideas on what I am doing wrong?? this is doing my head in as my friend doing an android version has successfully got his working..
My problem here was that I never Actually requested for the list of friends in my facebook graph request...
after replacing FBSDKGraphRequest(graphPath: "me", parameters: nil)
with FBSDKGraphRequest(graphPath: "me?fields=id,name,friends", parameters: nil)
I was able to retrieve the list of friends because the response actually contained information for this. A very trivial mistake on my part.
In v2.0 of the Graph API, you must request the user_friends permission
from each user. user_friends is no longer included by default in every
login. Each user must grant the user_friends permission in order to
appear in the response to /me/friends.
see here : https://developers.facebook.com/bugs/1502515636638396/