I’m trying to get working Facebook authentification in my app.
I’m following instructions here : https://firebase.google.com/docs/auth/ios/facebook-login
When I clicked on the Facebook login button, everything is working fine : the user is logged. In the facebook login delegate method, it is ok :
func loginButton(_ loginButton: FBSDKLoginButton!, didCompleteWith result: FBSDKLoginManagerLoginResult!, error: Error!)
In this method, I have to create a Firebase token to authenticate finally with Firebase (step 5). This is what I do :
let credential = FacebookAuthProvider.credential(withAccessToken:
FBSDKAccessToken.current().tokenString)
Auth.auth().signIn(with: credential) { (user, error) in
if let error = error {
print(error.localizedDescription)
self.errorServer()
} else {
FitUtils.setFitUser(user: user)
}
}
The problem : My credential
variable is not nil, everything is working, but when i’m calling Auth.auth().signIn(...)
, the method throwns the error
variable, and user
is nil.
I don’t have many information about the error :
An internal error has occurred, print and inspect the error details
for more information.
And
error NSError domain: "FIRAuthErrorDomain" - code: 17999 0x0000604000640630
I suspect an error about the Facebook API key or something like that in the Firebase console, but I already checked everything is fine.
Any idea ?
EDIT
I found an explicit description of the error :
UserInfo={FIRAuthErrorUserInfoDeserializedResponseKey={
code = 400;
errors = (
{
domain = global;
message = "Unsuccessful debug_token response from Facebook: {"error":{"message":"(#100) You must provide an app access token or a user access token that is an owner or developer of the app","type":"OAuthException","code":100,"fbtrace_id":"GkGVPPBP7vo"}}";
reason = invalid;
}
);
message = "Unsuccessful debug_token response from Facebook: {"error":{"message":"(#100) You must provide an app access token or a user access token that is an owner or developer of the app","type":"OAuthException","code":100,"fbtrace_id":"GkGVPPBP7vo"}}";
}}}}
(lldb)
4
Answers
Finally found an answer thanks to this post :
https://github.com/firebase/FirebaseUI-iOS/issues/83#issuecomment-232523935
I have to disable the option "Is App Secret embedded in the client?" in the Facebook console :
Hope this helps.
On the Facebook Developer site, navigate to:
Settings > Advanced > Security > Require App Secret
Set to YES.
Fixed it for me.
The following worked for me:
Go to android/app/src/main/res/values/strings.xml. Make sure you have the following line in your
<resources>
:where
FACEBOOK*APP*ID
is the your app ID from developers.facebook.com/appsIn my case, there was set wrong
App secret
in Firebase 🤷🏻♂️App secret
from your Facebook app.