"Invalid Token" when trying to authenticate phone number using firebase - ios

Question

This is my code:
import FirebaseAuth
class AuthPhoneNum {
static func getPhoneNum(phoneNumber: String) {
PhoneAuthProvider.provider().verifyPhoneNumber(phoneNumber) { (verificationID, error) in
if let error = error {
print(error)
return
}
UserDefaults.standard.set(verificationID, forKey: "authVerificationID")
}
}
static func verify(verificationCode: String?) {
guard let verificationID = UserDefaults.standard.string(forKey: "authVerificationID") else { return }
if verificationCode != nil {
let credential = PhoneAuthProvider.provider().credential(
withVerificationID: verificationID,
verificationCode: verificationCode!)
Auth.auth().signIn(with: credential) { (user, error) in
if let error = error {
print(error)
return
}
}
} else {
print("No verification code")
}
}
}
This is what the console prints out:
Error Domain=FIRAuthErrorDomain Code=17048 "Invalid token."
UserInfo={NSLocalizedDescription=Invalid token.,
error_name=INVALID_APP_CREDENTIAL}
What am I doing wrong? Thanks

Answer 1

I was also experiencing this problem. Checked the following:
Correct bundle Id
Correct Google-Info.plist
Correct aps-environment value
Correct APNS token type when calling auth.setAPNStoken (.unknown for auto detect)
Nothing helped until in Firebase app settings I uploaded the APNS authentication key (p8) instead of certificates - I used those certificates before for push notifications only and everything was working fine but for phone number notifications something went wrong.

Answer 2

It is most likely that you need to upload an .p8 Key file
(I have an Enterprise account but same thing for developer)
In Apple Developer Account:
All Keys
Create New Key (+)
Type in Global name for all of your apps
Checkbox next to Apple Push Notifications service (APNs)
Download your p8 file
Upload to firebase dashboard

Answer 3

First regenerates APNS key and upload in firebase for cloud messaging
1) Import Firebase and FirebaseAuth
import Firebase
import FirebaseAuth
2) In didFinishLaunchingWithOptions Configure firebase.
FirebaseApp.configure()
3) Write these two func in AppDelegate.
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
let firebaseAuth = Auth.auth()
firebaseAuth.setAPNSToken(deviceToken, type: AuthAPNSTokenType.prod)
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void) {
let firebaseAuth = Auth.auth()
if (firebaseAuth.canHandleNotification(userInfo)){
print(userInfo)
return
}
}
Very Important note : uthAPNSTokenType set correctly for [sandbox / production] or set for common .unknown
In my case it was the apns token type that was wrong:
Auth.auth().setAPNSToken(deviceToken, type: AuthAPNSTokenType.prod)
should have been:
Auth.auth().setAPNSToken(deviceToken, type: AuthAPNSTokenType.sandbox)

Answer 4

In my case, the problem was an incorrect bundle id in the iOS app, in the firebase project settings (Project settings -> General -> Your apps).
I hope this helps anyone overlooking the same detail.

Answer 5

same problem questions have been before on SO. so would like to tell you setup all pre-require step before run code.
Pre-Require Steps:
Register bundle id on Developer account and enable notifications for
bundle id.
Register same bundle id on firebase console setting page and create
app, download Google-Info.plist file, make sure name should be same.
Upload Push certificates on firebase console for sandbox as well as
development.
follow this below link for code implementation.
setup code for Firebase Auth

Answer 6

Make sure that it is APNs that you are selected under Key Services. The number of APNs certificates per developer account is limited to 2. So if you already had 2 certificates before, there is a chance that you are created the certificate by checking DeviceCheck instead of APNs.

Answer 7

For any one else who double checked the above and still have issues, don't forget to add your team ID and App Id in your ios config file.
And, don't forget to download it again, and replace your old one with the updated one.

Answer 8

If you have tried adding the APNs key (p8) in your Firebase console and also checked for the Correct bundle Id and Correct Google-Info.plist.
And still the issue persists
Do check if you have "Push Notifications" enabled and "Remote notifications" selected in "Signing and capabilities" in Xcode->Runner but are not actually using firebase messaging
Then care to uncheck "Remote notifications" from "Signing and capabilities" and remove "Push Notifications" in Xcode->Runner.
In my case this was the issue

Answer 9

I faced same problem when I want send OTP and get notifications, I created APN key on apple developer console then added it to firebase after that everything got well:

Answer 10

If you did everything right as per the documentation. Try one thing.
Paste this line in AppDelegate.m under,
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
[[FIRAuth auth] setAPNSToken:deviceToken type:FIRAuthAPNSTokenTypeProd];