Flutter:Firebase 身份验证无需登录即可创建用户

Swi*_*ter 10 dart firebase firebase-authentication flutter

我的 flutter 应用程序中有一个使用 firebase 身份验证的用户管理功能。我可以使用firebase_authcreateUserWithEmailAndPassword()功能注册新用户帐户。

return await FirebaseAuth.instance.
    createUserWithEmailAndPassword(email: email, password: password);
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问题是注册成功后,FirebaseAuth即使我已经登录,它也会自动将我的实例验证为新用户。

我遇到了这个答案:Firebase 踢出当前用户,但它是在 javascript 中并且有一个稍微不同的 api。

我怎样才能在飞镖中做等价的?

Swi*_*ter 24

更新firebase_core ^0.5.0firebase_auth ^0.18.0+1弃用了一些旧类。

下面是为firebase_core ^0.5.1和更新的代码firebase_auth ^0.18.2

static Future<UserCredential> register(String email, String password) async {
    FirebaseApp app = await Firebase.initializeApp(
        name: 'Secondary', options: Firebase.app().options);
    try {
        UserCredential userCredential = await FirebaseAuth.instanceFor(app: app)
        .createUserWithEmailAndPassword(email: email, password: password);
    }
    on FirebaseAuthException catch (e) {
      // Do something with exception. This try/catch is here to make sure 
      // that even if the user creation fails, app.delete() runs, if is not, 
      // next time Firebase.initializeApp() will fail as the previous one was
      // not deleted.
    }
    
    await app.delete();
    return Future.sync(() => userCredential);
}
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原答案

我尝试了 firebase 身份验证 api,我目前的工作解决方案是:

// Deprecated as of `firebase_core ^0.5.0` and `firebase_auth ^0.18.0`.
// Use code above instead.

static Future<FirebaseUser> register(String email, String password) async {
    FirebaseApp app = await FirebaseApp.configure(
        name: 'Secondary', options: await FirebaseApp.instance.options);
    return FirebaseAuth.fromApp(app)
        .createUserWithEmailAndPassword(email: email, password: password);
}
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本质上它归结为创建一个新实例,FirebaseAuth因此自动登录createUserWithEmailAndPassword()不会影响默认实例。


ada*_*ion 5

根据Swift 的回答,我发布了此解决方案的更新代码。

  Future signUpWithEmailPasswordAdminPastor(String email, String password, String role, String nama, String keuskupan, String kevikepan, String paroki) async {
try {

  FirebaseApp tempApp = await Firebase.initializeApp(name: 'temporaryregister', options: Firebase.app().options);

  UserCredential result = await FirebaseAuth.instanceFor(app: tempApp).createUserWithEmailAndPassword(
      email: email, password: password);

  // create a new document user for the user with uid
  await DatabaseService(uid: result.user.uid).updateUserDataSelf(
      true,
      role,
      nama,
      keuskupan,
      kevikepan,
      paroki,
      '',
      DateTime.now(),
      DateTime.now());

  tempApp.delete();
  return 'OK';
} catch (e) {
  print(e.toString());
  return null;
}
}
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上面的代码适用于firebase_core: ^0.5.0firebase_auth: ^0.18.0+1