firebase / firebase/FirebaseUI-Flutter
🐛 Email signing-up (register) not responsive (a case uncovered by current documentation)
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Beschreibung
### Is there an existing issue for this?
- [X] I have searched the existing issues and found no duplicates.
### What plugin is this bug for?
Firebase UI Auth
### What platform(s) does this bug affect?
Android, iOS
### List of dependencies used.
flutter pub deps -s list
Dart SDK 3.3.0
Flutter SDK 3.19.2
campus 1.0.0+1dependencies:
- flutter 0.0.0
- characters 1.3.0
- collection 1.18.0
- material_color_utilities 0.8.0
- meta 1.11.0
- vector_math 2.1.4
- sky_engine any
- cupertino_icons 1.0.8
- flutter_localizations 0.0.0
- flutter any
- intl 0.18.1
- characters 1.3.0
- clock 1.1.1
- collection 1.18.0
- material_color_utilities 0.8.0
- meta 1.11.0
- path 1.9.0
- vector_math 2.1.4
- intl 0.18.1
- clock ^1.1.0
- meta ^1.0.2
- path ^1.8.0
- go_router 13.2.5
- collection ^1.15.0
- flutter any
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- meta ^1.7.0
- flutter_dotenv 5.1.0
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- flutter any
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- crypto 3.0.3
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- flutter any
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- flutter any
- firebase_auth_platform_interface 7.2.7
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- firebase_auth_platform_interface ^7.2.7
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- firebase_core_web ^2.17.0
- flutter any
- flutter_web_plugins any
- http_parser ^4.0.0
- meta ^1.8.0
- web ^0.5.1
- firebase_core_platform_interface 5.0.0
- collection ^1.0.0
- flutter any
- flutter_test any
- meta ^1.8.0
- plugin_platform_interface ^2.1.3
- firebase_core_web 2.17.0
- firebase_core_platform_interface ^5.0.0
- flutter any
- flutter_web_plugins any
- meta ^1.8.0
- web ^0.5.1
- firebase_dynamic_links_platform_interface 0.2.6+34
- _flutterfire_internals ^1.3.34
- firebase_core ^2.31.1
- flutter any
- meta ^1.8.0
- plugin_platform_interface ^2.1.3
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- collection ^1.18.0
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- sqflite ^2.3.3
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- flutter any
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- characters 1.3.0
- collection 1.18.0
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- meta 1.11.0
- vector_math 2.1.4
- geolocator_android 4.6.0
- flutter any
- geolocator_platform_interface ^4.1.0
- meta ^1.10.0
- uuid >=4.0.0 <6.0.0
- geolocator_apple 2.3.7
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- flutter any
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- meta ^1.9.1
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- meta ^1.3.0
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- collection ^1.15.0
- source_span ^1.8.0
- string_scanner ^1.1.0
- typed_data ^1.3.0
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- flutter any
- flutter_plugin_android_lifecycle ^2.0.1
- image_picker_platform_interface ^2.10.0
- image_picker_for_web 3.0.4
- flutter any
- flutter_web_plugins any
- image_picker_platform_interface ^2.9.0
- mime ^1.0.4
- web ^0.5.1
- image_picker_ios 0.8.11+2
- flutter any
- image_picker_platform_interface ^2.10.0
- image_picker_linux 0.2.1+1
- file_selector_linux ^0.9.1+3
- file_selector_platform_interface ^2.2.0
- flutter any
- image_picker_platform_interface ^2.8.0
- image_picker_macos 0.2.1+1
- file_selector_macos ^0.9.1+1
- file_selector_platform_interface ^2.3.0
- flutter any
- image_picker_platform_interface ^2.8.0
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- flutter any
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- file_selector_platform_interface ^2.2.0
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- test_api >=0.5.0 <0.8.0
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### Steps to reproduce
Use the recommended code snippet for the auth signing in page. (I use `GoRoute` so the code is a bit different, but everything around `firebase_ui_auth` is the same)
```dart
GoRoute(
path: '/sign-in',
builder: (BuildContext context, GoRouterState state) {
return SignInScreen(
actions: [
AuthStateChangeAction((context, signInState) {
debugPrint("AuthState changed: ${signInState.user!.email}");
if (signInState.user!.emailVerified) {
context.pushReplacement(HomeScreen.route);
} else {
context.push('/verify-email');
}
}),
],
);
},
),
```
Then in the Sign In page, click "Register", fill in valid credential and click the "Register" button.
### Expected Behavior
At least something will happen to indicate that the registration is successful. Either jumping to the email verification page, or the sign in page, or some hint appears.
If nothing happens, the documentation should highlight this intended design, and add post-registration handling in the example code snippet.
### Actual Behavior
1. Nothing happens after successfully adding the user data to the firebase auth database.
2. The `firebase_ui_auth` documentation does not clarify this intended(?) behavior, or tell developers how to customize the post-registration behavior.
### Additional Information
I post this issue as a "bug" because the documentation says nothing about this phenomenon. So I doubt whether it is really intended that nothing happens after users click the Register button.
Some suggested solutions are:
1. After I looked deeply into the source code, I found that the AuthState `SigningUp` is issued before trying to write the user credential in the database, and `UserCreated` is issued after successfully written the user credential in the database. So below is my solution, and I suggest the example code snippet in the library documentation also change to similar (except for the use of `GoRoute`)
```dart
GoRoute(
path: '/sign-in',
builder: (BuildContext context, GoRouterState state) {
return SignInScreen(
actions: [
/// SignedIn state happens after a successful signing-in
AuthStateChangeAction((context, signInState) {
debugPrint("AuthState changed: ${signInState.user!.email}");
if (signInState.user!.emailVerified) {
context.pushReplacement(HomeScreen.route);
} else {
context.push('/verify-email');
}
}),
/// UserCreated state happens after a successful signing-up
AuthStateChangeAction((context, state) {
scaffoldMessengerKey.currentState?.showSnackBar(
const SnackBar(content: Text("User created. Please sign in now."))
);
context.push("/verify-email");
}),
],
);
},
),
```
2. I'd suggest the library developers to (optionally) automatically send an email verification after a successful registration. The option may be provided in the constructor of `SignInScreen`. Moreover, if app developers decided to not verify emails, there can be another option to automatically sign in after a successful registration.
3. Although I haven't tried `RegisterScreen` yet, it sounds like something similar to `SignInScreen`. I don't know why are there two ways to provide email registration UI, and why we can't customize the "authSwith" (Register/Sign In text button) on the `SignInScreen` to use dedicated pages instead.
Beitragsleitfaden
Rechercherichtung
Beginne damit, die E-Mail-Registrierung auf Android und iOS mit den angegebenen Versionen von Flutter, Dart, Firebase UI Auth und den Abhängigkeiten zu reproduzieren, und vergleiche anschließend das Verhalten mit der aktuellen Dokumentation. Erledigt ist die Aufgabe, wenn der in der Dokumentation beschriebene Registrierungsfall auf beiden Plattformen korrekt reagiert und der im Issue beschriebene Fehler durch eine geeignete Verifizierung abgedeckt ist.
Vom Indexierungsmodell aus dem Issue-Text verfasst.
Bewertung
- Tech-Stack
- dart, firebase, flutter
- Bereich
- authentication, mobile
- Issue-Typ
- Bug
- Schwierigkeit
- 4/5
- Geschätzter Aufwand
- 3-5 Tage
- Aktivitätsstatus
- Veraltet
- Klarheit
- Muss geklärt werden
- Anfängerfreundlichkeit
- 20/100