路径必须是非空字符串，并且不能包含“。”，“＃”，“ $”，“ [”或“]”

Question

我正在尝试向Firebase和ionic注册， 但我从一开始就面临问题，

错误错误：Reference.child失败：第一个参数是无效路径=“未定义”。路径必须是非空字符串，并且不能包含“。”，“＃”，“ $”，“ [”或“]”，

有人可以帮我吗

Vector has 2 items and 3 capacity
        Value at 0 is 0x123456
        Value at 1 is 0x654321
Press any key to continue . . .

this is the provider:

import * as firebase from 'firebase';
import { Injectable } from '@angular/core';

/*
  Generated class for the UserServiceProvider provider.

  See https://angular.io/guide/dependency-injection for more info on providers
  and Angular DI.
*/
@Injectable()
export class UserServiceProvider {
  public data: any;
  public fireAuth: any;
  public userProfile: any;

  constructor() {
    console.log('Hello UserServiceProvider Provider');

    this.fireAuth = firebase.auth();

  	this.userProfile = firebase.database().ref(`email`);
  }

  signupUserService(account: {}){

    
    return this.fireAuth.createUserWithEmailAndPassword(account[`email`], account[`password`]).then((newUser) => {
      //sign in the user
      this.fireAuth.signInWithEmailAndPassword(account[`email`], account[`password`]).then((authenticatedUser) => {
        //successful login, create user profile
      this.userProfile.child(authenticatedUser.uid).set(
        account
      );
      });
    });

}

}
------------------------------------------------------

this is my signUp page

import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams, LoadingController, ToastController } from 'ionic-angular';
import { UserServiceProvider } from '../../providers/user-service/user-service';
import { HomePage } from '../home/home';

/**
 * Generated class for the LoginPage page.
 *
 * See https://ionicframework.com/docs/components/#navigation for more info on
 * Ionic pages and navigation.
 */

@IonicPage()
@Component({
  selector: 'page-login',
  templateUrl: 'login.html',
})
export class LoginPage {
  public skills : string;
  public email : string;
  public phone : any;
  public password : any;
  public first_name : any;
  public last_name : any;
  public city : any;
  public state : any;
  public country : any;
  public isJobSeeker : boolean;

  constructor(public navCtrl: NavController,
     public navParams: NavParams,
     public usersserviceProvider : UserServiceProvider, 
     public toastCtrl: ToastController, public loadingCtrl: LoadingController) {
  }

  ionViewDidLoad() {
    console.log('ionViewDidLoad LoginPage');
  }

  
  doSignup(){

    var   account = {
      first_name: this.first_name,
      last_name: this.last_name || '',
      skills: this.skills || '',
      email: this.email,
      phone: this.phone || '',
      password: this.password,
      city: this.city || '',
      state: this.state || '',
      country: this.country || '',
      isJobSeeker : this.country || ''

    };
var that = this;

var loader = this.loadingCtrl.create({
      content: "Please wait...",
      
    });
    loader.present();


  	this.usersserviceProvider.signupUserService(account).then(authData => {
  		//successful
  		loader.dismiss();
  		that.navCtrl.setRoot(HomePage);

  	}, error => {
      loader.dismiss();
     // Unable to log in
      let toast = this.toastCtrl.create({
        message: error,
        duration: 3000,
        position: 'top'
      });
      toast.present();

      that.password = ""//empty the password field

  	});

    
  }

}

预先感谢

Answer 1

如果您查看signInWithEmailAndPassword的文档，将会看到它返回了UserCredential。查看相关文档说明它没有uid属性，这说明了为什么获得undefined的原因。

您将要使用authenticatedUser.user.uid，所以：

this.fireAuth.signInWithEmailAndPassword(account[`email`], account[`password`]).then((userCredential) => {
  this.userProfile.child(userCredential.user.uid).set(
    account
  );
});

---

使用createUserWithEmailAndPassword创建一个新的用户帐户会自动登录，因此不需要嵌套这些调用。如果（仅）要在创建帐户时存储用户配置文件，则createUserWithEmailAndPassword还会返回一个UserCredential。因此，您也需要间接访问user.uid：

return this.fireAuth.createUserWithEmailAndPassword(account[`email`], account[`password`]).then((userCredential) => {
  return this.userProfile.child(userCredential.user.uid).set(
    account
  );
});