Error handling in Password reset flutter firebase - firebase

Question

I am building a Flutter/Firebase app with reset password functionality.
For modularity, I keep my auth functions in an AuthService Class.
class AuthService{
final auth.FirebaseAuth _auth = auth.FirebaseAuth.instance;
// **8** FUNCTION TO RESET PASSWORD
Future<void> resetPassword(String email) async {
try {
return await _auth.sendPasswordResetEmail(email: email);
} catch (e) {
print(e.toString());
}
}
// **8**
}
Then I call it in my widget like this:
final auth = Provider.of<AuthService>(context);
...
await auth.resetPassword(email);
When I add a .then method to go to a route when successful, it redirects to the new route even when there is an error. I have tried to add a .catch method but that throws an exception.
How can I go about this?
await auth.resetPassword(email).then((value) =>
Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
const AndroidRecoverySuccess())));
Thanks.

Answer 1

Return bool value after sendPasswordResetEmail, also your Future should return bool. Here is the working code:
Future<bool> resetPassword(String email) async {
try {
await _auth.sendPasswordResetEmail(email: email);
return true;
} catch (e) {
print(e.toString());
return false;
}
}
(optional) You can use FirebaseAuthException for better UX:
Future<bool> resetPassword(String email) async {
try {
await _auth.sendPasswordResetEmail(email: email);
return true;
} on FirebaseAuthException catch (e) {
if (e.code.toString() == 'invalid-email') {
// setState(() {message 'Invalid email address.';});
}
if (e.code.toString() == 'missing-email') {
//...
}
if (e.code.toString() == 'user-not-found') {
//...
}
} catch (e) {
return false;
}
}