IOS Firebase Authentication | Google Sign In Does Not Work On Mobile

[jakeydaddyo]

I'm using Capacitor & capacitor-firebase/authentication in my project, when starting the application on Desktop, the Google Sign-In works perfect, but when running on mobile I get the following error:
To Native -> FirebaseAuthentication signInWithGoogle

I checked out this discussion:
robingenz/capacitor-firebase-authentication#128
and it appears as the issue is the same, but the solution is not.

Attached are the relative files for IOS:
AppDelegate.swift:

import UIKit
import Capacitor
import Firebase

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        FirebaseApp.configure()
        return true
    }

    func applicationWillResignActive(_ application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(_ application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(_ application: UIApplication) {
        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(_ application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(_ application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }

    func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey: Any] = [:]) -> Bool {
        // Called when the app was launched with a url. Feel free to add additional processing here,
        // but if you want the App API to support tracking app url opens, make sure to keep this call
        return ApplicationDelegateProxy.shared.application(app, open: url, options: options)
    }

    func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool {
        // Called when the app was launched with an activity, including Universal Links.
        // Feel free to add additional processing here, but if you want the App API to support
        // tracking app url opens, make sure to keep this call
        return ApplicationDelegateProxy.shared.application(application, continue: userActivity, restorationHandler: restorationHandler)
    }

}

PodFile:

require_relative '../../node_modules/@capacitor/ios/scripts/pods_helpers'

platform :ios, '13.0'
use_frameworks!

# workaround to avoid Xcode caching of Pods that requires
# Product -> Clean Build Folder after new Cordova plugins installed
# Requires CocoaPods 1.6 or newer
install! 'cocoapods', :disable_input_output_paths => true

def capacitor_pods
  pod 'Capacitor', :path => '../../node_modules/@capacitor/ios'
  pod 'CapacitorCordova', :path => '../../node_modules/@capacitor/ios'
  pod 'CapacitorFirebaseAuthentication', :path => '../../node_modules/@capacitor-firebase/authentication'
  pod 'CapacitorCamera', :path => '../../node_modules/@capacitor/camera'
  pod 'CapacitorSplashScreen', :path => '../../node_modules/@capacitor/splash-screen'
  pod 'CordovaPlugins', :path => '../capacitor-cordova-ios-plugins'
end

target 'App' do
  capacitor_pods
  # Add your Pods here
  pod 'Firebase/Core'
  pod 'Firebase/Auth'
  pod 'CapacitorFirebaseAuthentication/Google', :path => '../../node_modules/@capacitor-firebase/authentication'
end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
        if target.respond_to?(:product_type) and target.product_type == "com.apple.product-type.bundle"
            target.build_configurations.each do |config|
                config.build_settings['CODE_SIGNING_ALLOWED'] = 'NO'
            end
        end
    end
end
  assertDeploymentTarget(installer)
end

Any help would be greatly appreciated!

[robingenz]

Hi @jakeydaddyo,
Please provide a Minimal, Reproducible Example (see How to create a Minimal, Reproducible Example) in a public GitHub repository so I can debug the issue.

[jakeydaddyo]

Uploaded @: https://github.com/jakeydaddyo/Firebase-Authentication

[robingenz]

@jakeydaddyo Your configuration isn't correct (see capacitor.config.json).

Currently:

{
  "plugins": {
    "CapacitorFirebaseAuth": {
	    "providers": ["google.com"],
	    "languageCode": "en",
	    "nativeAuth": false
	  }
}

It should be:

{
  "plugins": {
    "FirebaseAuthentication": {
      "providers": ["google.com"],
      "skipNativeAuth": false
    }
  }
}

Please set the language at runtime:

import { FirebaseAuthentication } from '@capacitor-firebase/authentication';

const setLanguageCode = async () => {
  await FirebaseAuthentication.setLanguageCode({ languageCode: 'en-US' });
};

[klyse]

Unsure if this is still an open issue. If yes maybe this helps: #323 (comment)

[curlyz]

For future reference, if you got "To Native -> FirebaseAuthentication signInWithGoogle" but nothing work, it's probably due to pnpm. Try use the good old npm.

This repo work perfectly fine, following the latest docs work for me.

I waste 2 days on this, until I realize pod reference the file inside node_modules. Which when using pnpm, it is a symbolic, not a real file. So nothing works and no error to tell directions.