I would like to make a custom login button with 'ParseFacebookUtilsV4'framework.
regarding the documentation of Parse, it should be:
PFFacebookUtils.logInInBackgroundWithReadPermissions(permissions) {
(user: PFUser?, error: NSError?) -> Void in
if let user = user {
if user.isNew {
print("User signed up and logged in through Facebook!")
} else {
print("User logged in through Facebook!")
}
} else {
print("Uh oh. The user cancelled the Facebook login.")
}
}
The error is:
Use of unresolved identifier 'permissions'
Do you have an idea?
you should add the permissions
let permissions = ["public_profile", "email", "user_friends"]
PFFacebookUtils.logInInBackground(withReadPermissions: permissions) { (user : PFUser?, error: Error?) in
Related
When I log in with Facebook in on a Real Device It will be stuck on the Facebook login page and don' return back to my app.
I have put facebook code in URL Schemes and put all code that need to put in info.plist.
This is all the code that i use to login Facebook by using firebase.
In Viewdidload
facebookButton.addTarget(self, action: #selector(handleCustomFBLogin), for: .touchUpInside)
Code that i use in Viewcontroller.
#objc func handleCustomFBLogin(sender:UIButton!){
LoginManager().logIn(permissions: ["email", "public_profile"], from: self) { (result, error) in
guard let result = result else {
print("No result found")
return
}
if result.isCancelled {
print("Facebook Login Cancelled")
} else if let error = error {
print("Process error \(error.localizedDescription)")
} else {
print("Logged in")
self.showEmailAddress()
self.actionfb()
}
}
}
func loginButton(_ loginButton: FBLoginButton, didCompleteWith result: LoginManagerLoginResult?, error: Error?){
if(error != nil){
print(error!)
return
}else{
print("Successfully Logged in using facebook")
showEmailAddress()
}
}
func actionfb(){
let accessToken = AccessToken.current
guard (accessToken?.tokenString) != nil else {return}
let credential = FacebookAuthProvider.credential(withAccessToken: accessToken!.tokenString)
// Perform login by calling Firebase APIs
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
self.showAlert(title: "error", message: "\(error.localizedDescription)")
return
}
self.performSegue(withIdentifier: "GoGo", sender: nil)
self.navigationController?.setNavigationBarHidden(true, animated: true)
}
}
func showEmailAddress(){
GraphRequest(graphPath: "/me", parameters: ["fields" : "id, name, first_name, last_name, email, birthday, picture"]).start { (connection, result, err) in
if(err != nil){
print("Failed to start GraphRequest", err ?? "")
return
}
print(result ?? "")
}
}
func loginButtonDidLogOut(_ loginButton: FBLoginButton){
print("Logged out of Facebook")
}
In Appdelegate
ApplicationDelegate.shared.application(application, didFinishLaunchingWithOptions: launchOptions)
This will happen only when i had test on real device!!, but in simulation this can work normally
I'm not exactly sure if this is the solution, but this fixed it for me.
I copied the OAuth redirect URI from my firebase, under Authentication -> Facebook
And then on my Facebook developer page, under Products -> Facebook Login -> Settings, I pasted it into Valid OAuth Redirect URIs
I then logged in by entering in my username and password into of clicking "Login with Facebook" and the error stopped happening.
I have no idea if the error will return, maybe this will be helpful to someone though.
I am trying to use Firebase and Facebook login and it is working, but when the Facebook page opens and you close it without logging in it throws an error and says "fatal error: unexpectedly found nil while unwrapping an Optional value"
The line that is highlighted as causing the error is let credential....
Here is my code:
// Login button is pressed
func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!) {
if let error = error {
print(error.localizedDescription)
} else {
let credential = FIRFacebookAuthProvider.credentialWithAccessToken(FBSDKAccessToken.currentAccessToken().tokenString)
FIRAuth.auth()?.signInWithCredential(credential) { (user, error) in
if let error = error {
print(error.localizedDescription)
} else {
self.performSegueWithIdentifier("loginSegue", sender: self)
print("Login complete")
}
}
}
}
Can someone please help me? Thanks
You need to check also if you have a user, or probably the user canceled the sign up
if let user = user {
} else {
print("Uh oh. The user cancelled the Facebook login."))
}
Trying to get Facebook login to work with the new Firebase, but I keep getting this error: "An invalid API Key was supplied in the request."
facebookLogin.logInWithReadPermissions(["public_profile", "email", "user_friends"], fromViewController: self) { (login, error) in
if error != nil {
print("Facebook login failed. Error \(error)")
} else if login.isCancelled {
print("Facebook login was cancelled.")
} else {
let accessToken = FBSDKAccessToken.currentAccessToken().tokenString
let credential = FIRFacebookAuthProvider.credentialWithAccessToken(accessToken)
if let user = FIRAuth.auth()?.currentUser {
user.linkWithCredential(credential) { (sup, error) in
if let error = error {
print(error.localizedDescription)
return
}
}
} else {
FIRAuth.auth()?.signInWithCredential(credential) { (user, error) in
if let error = error {
// ERROR COMING FROM HERE
print(error.localizedDescription)
return
}
}
}
}
}
Follow the instructions from Google: https://support.google.com/cloud/answer/6158862?hl=en to get or create the API KEY of your iOS App.
Then you need to grab this API KEY and put it in the GoogleService-Info.plist as the:
Key: API_KEY
Value: the api key that you got.
I have a registration/login method (from PFFacebookUtilsV4) that successfully adds a new PFUser object to my Parse database when a new Facebook user logs in. Within that method I make an FBSDKGraphRequest to get the basic user data (name, email). However I am having trouble adding the name and email to the newly created PFUser object. Here's my code so far:
#IBAction func facebookLogin(sender: AnyObject) {
PFFacebookUtils.logInInBackgroundWithReadPermissions(["public_profile","email","user_friends"], block: { (user: PFUser?, error: NSError?) -> Void in
if let user = user {
if user.isNew {
let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"name,email,picture.width(480).height(480)"])
graphRequest.startWithCompletionHandler({ (connection, result, error) -> Void in
if ((error) != nil)
{
println("Error: \(error)")
ProgressHUD.showError("Error occurred.")
} else {
self.userFullName = result.valueForKey("name") as? String
println("User Name is: \(self.userFullName)")
self.userEmail = result.valueForKey("email") as? String
println("User Email is: \(self.userEmail)")
// Here I try to add the retrieved Facebook data to the PFUser object
user["fullname"] = self.userFullName
user.email = self.userEmail
self.performSegueWithIdentifier("login", sender: self)
println("User signed up and logged in through Facebook!")
ProgressHUD.showSuccess("Welcome \(self.userFullName)!")
}
})
} else {
println("User logged in through Facebook!")
ProgressHUD.showSuccess("Welcome \(self.userFullName)!")
self.performSegueWithIdentifier("login", sender: self)
}
} else {
println("User cancelled the Facebook login.")
}
})
}
Thanks! Any help is greatly appreciated.
Save the user after you add the new data inside the Facebook request closure.
user.saveEventually()
Or any other save that you prefer.
i need to get the Facebook user information details when i login a new user through parse. at present i am logging in the new user below. can't seem to get the user details though. I've seen some code written on objective - c. most of the functions don't work anymore
The Facebook iOS sdks i am running is v4.3.0.
#IBAction func facebookButton(sender: AnyObject) {
PFFacebookUtils.logInInBackgroundWithReadPermissions(permissions) {
(user: PFUser?, error: NSError?) -> Void in
if let user = user {
if user.isNew {
println("User signed up and logged in through Facebook!")
} else {
println("User logged in through Facebook!")
}
} else {
println("Uh oh. The user cancelled the Facebook login.")
}
}
}
To get the user details you have to send a FBSDKGraphRequest after the login request.
This can be done inside the if let user = user {...} block.
// Create request for user's Facebook data
let request = FBSDKGraphRequest(graphPath:"me", parameters:nil)
// Send request to Facebook
request.startWithCompletionHandler {
(connection, result, error) in
if error != nil {
// Some error checking here
}
else if let userData = result as? [String:AnyObject] {
// Access user data
let username = userData["name"] as? String
// ....
}
}
For the new Facebook API and version of Swift 3.1 you can do something like this:
if((FBSDKAccessToken.current()) != nil) {
FBSDKGraphRequest(graphPath: "me", parameters: ["fields": "id,name,first_name,last_name,email"]).start(completionHandler: {(connection, result, error) -> Void in
if(error != nil) {
print("Some error occurred.");
} else {
print(result!)
}
})
}