Ionic / Angular / Capacitor / Firebase Facebook Auth & Role based authentification

Question

我有一个在IonicAngularCapacitorFirebase创建的Android下工作的facebook认证，这是完全工作.

• 我想做的是:有一个基于角色的身份验证。
• 我所做的:将我的用户的facebook ID注册到一个实时数据库中，我将为每个用户创建type值。

所以当我的用户第一次登录时，我在realtimedatabase中创建一个enty。

错误:在数据库中没有创建任何内容，但我没有任何错误信息。

这是我的共享服务:

import { Injectable } from '@angular/core';
import { User } from './User';
import { AngularFireDatabase, AngularFireList, AngularFireObject } from '@angular/fire/database';
@Injectable({
providedIn: 'root'
})
export class UserService {
userListRef: AngularFireList<any>;
userRef: AngularFireObject<any>;
constructor(private db: AngularFireDatabase) {}
createUser(facebookID: string, name: string, email: string){
let usr: User;
usr.facebookID = facebookID;
usr.name = name;
usr.email = email;
usr.type = "standard";
return this.userListRef.push({
facebookID: usr.facebookID,
name: usr.name,
email: usr.email
})
}
getUser(facebookID: string) {
let usr: User;
this.userRef = this.db.object('/user/' + facebookID);
this.userRef.snapshotChanges().subscribe(user => { user = user });
return usr;
}
userExist(facebookID: string){
if(this.getUser(facebookID).facebookID == facebookID) {return true;}
else {return false;}
}
getUserList(){
this.userListRef = this.db.list('/user');
return this.userListRef;
}
updateUser(facebookID, username: string, type: string){
let usr: User;
usr = this.getUser(facebookID);
return this.userRef.update({
facebookID: usr.facebookID,
name: username,
email: usr.email,
type: type
})
}
}

我的facebook auth的sign in函数:

async signIn(): Promise<void> {
const FACEBOOK_PERMISSIONS = ['public_profile', 'email'];
const result = await Plugins.FacebookLogin.login({ permissions: FACEBOOK_PERMISSIONS });
if (result && result.accessToken) {
let user = { token: result.accessToken.token, userId: result.accessToken.userId }
let navigationExtras: NavigationExtras = {
queryParams: {
userinfo: JSON.stringify(user)
}
};
this.router.navigate(["/feed"], navigationExtras);
}
}

我的用户类:

export class User {
$key: string;
facebookID: string;
name: string;
email: string;
type: string;
}

我尝试在数据库中创建条目的页面:

import { Component } from '@angular/core';
import { Plugins } from '@capacitor/core';
import { Router, ActivatedRoute } from '@angular/router';
import { UserService } from 'shared/user.service';
@Component({
selector: 'app-feed',
templateUrl: './feed.page.html',
styleUrls: ['./feed.page.scss'],
})
export class FeedPage {
logininfo: any;
user: any;
constructor(private route: ActivatedRoute,
private router: Router,
private usrService: UserService
) {
this.route.queryParams.subscribe(params => {
if (params && params.userinfo) {
this.logininfo = JSON.parse(params.userinfo);
}
});
}
ionViewWillEnter() {
this.getUserInfo();
//Create a user based on facebookID
if (this.usrService.userExist(this.user.id) == false) {
this.usrService.createUser(this.user.id, this.user.name, this.user.email);
}
}
async signOut(): Promise<void> {
await Plugins.FacebookLogin.logout();
this.router.navigate(['/home']);
}
async getUserInfo() {
const response = await fetch(`https://graph.facebook.com/${this.logininfo.userId}?fields=id,name,gender,link,picture&type=large&access_token=${this.logininfo.token}`);
const myJson = await response.json();
this.user = myJson
}
}

当然所有的firebase密钥&id是在环境中设置的，下面是我的app.module.ts，它利用了它:

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RouteReuseStrategy } from '@angular/router';
import { IonicModule, IonicRouteStrategy } from '@ionic/angular';
import { SplashScreen } from '@ionic-native/splash-screen/ngx';
import { StatusBar } from '@ionic-native/status-bar/ngx';
import { AppComponent } from './app.component';
import { AppRoutingModule } from './app-routing.module';
import { AngularFireModule } from '@angular/fire';
import { AngularFireAuthModule } from '@angular/fire/auth';
import { AngularFireDatabaseModule } from '@angular/fire/database';
import { AngularFireStorageModule } from '@angular/fire/storage';
import { environment } from '../environments/environment';
@NgModule({
declarations: [AppComponent],
entryComponents: [],
imports: [BrowserModule, IonicModule.forRoot(), AppRoutingModule,
AngularFireModule.initializeApp(environment.firebaseConfig),
AngularFireAuthModule,
AngularFireDatabaseModule,
AngularFireStorageModule],
providers: [
StatusBar,
SplashScreen,
{ provide: RouteReuseStrategy, useClass: IonicRouteStrategy }
],
bootstrap: [AppComponent]
})
export class AppModule {}

如何解决这个问题?

Answer 1

我想你只是缺少一个绑定到用户列表的列表。您可以将列表绑定到几个不同的位置。一个选项是在构造函数中，像这样。

constructor(private db: AngularFireDatabase) {
this.userListRef = db.list('user');
}

这会让AngularFireDatabase服务知道在实时数据库的哪里添加新用户。

Answer 2

另一个选择是使用AngularFire Object API而不是List API。

createUser(facebookID: string, name: string, email: string){
let usr: User;
usr.facebookID = facebookID;
usr.name = name;
usr.email = email;
usr.type = "standard";
let path = `user/${usr.facebookID}`;
this.db.object(path).set(usr);
}