[英]How to display group of a user authenticated using Cognito using React?
[英]Display components if there is an authenticated user
在angular 7应用程序中,我将在此处学习根据angularfire2文档实施身份验证。 我像这样设置了我的app.component.html文件
<app-login *ngIf="!authService.user"></app-login>
<div class="container-fluid" *ngIf="(authService.user | async) as user">
<div class="row">
<!-- navigation sidebar -->
<div class="col-2 pt-5" id="sideNav">
<app-navbar></app-navbar>
</div>
<!-- main content area -->
<main class="col-10 offset-2">
<router-outlet></router-outlet>
</main>
</div>
</div>
因此,如果有经过身份验证的用户,则不会呈现登录组件。 我有一个使用AngularFireAuth
import { Injectable } from "@angular/core";
import { AngularFireAuth } from "@angular/fire/auth";
import { auth } from "firebase/app";
@Injectable({
providedIn: "root"
})
export class AuthenticateService {
constructor(private afAuth: AngularFireAuth) {}
signinUser(email: string, password: string) {
this.afAuth.auth.signInWithEmailAndPassword(email, password);
console.log("logged in");
}
}
我的login.component.ts导入身份验证服务,并在用户提供电子邮件和密码时尝试登录用户
import { NgForm } from "@angular/forms";
import { Component, OnInit } from "@angular/core";
import { AuthenticateService } from "../services/authenticate.service";
import { Router } from "@angular/router";
@Component({
selector: "app-login",
templateUrl: "./login.component.html",
styleUrls: ["./login.component.css"]
})
export class LoginComponent implements OnInit {
user = null;
constructor(private authService: AuthenticateService) {}
ngOnInit() {}
tryLogin(loginForm: NgForm) {
const email = loginForm.value.email;
const password = loginForm.value.password;
console.log(email, password);
this.authService.signinUser(email, password);
}
}
我的登录组件按预期方式呈现,并且当我尝试登录但我的视图没有按预期方式更改时,我看到console.log消息-即呈现包含导航和主要内容区域的div。
我如何实现我的目标,我现在正在做某些事情吗?
我相信signInWithEmailAndPassword
应该是异步的,因此您需要等待它解决:
this.afAuth.auth.signInWithEmailAndPassword(email, password)
.then(response => console.log(response));
我不确定响应的确切类型是什么,但是您应该将其保存在身份验证服务中:
export class AuthenticateService {
public user: BehaviorSubject<any> = new BehaviorSubject(null); // Add type accordingly
constructor(private afAuth: AngularFireAuth) {}
signinUser(email: string, password: string) {
this.afAuth.auth.signInWithEmailAndPassword(email, password)
.then(response => { console.log('Logged in!'; this.user.next(response); });
}
}
将您的authService
添加到AppComponent:
constructor(private myAuthService: AuthenticateService ) {}
并在app.component.html
查找登录用户,如下所示:
<app-login *ngIf="!(myAuthService.user | async)"></app-login>
<div class="container-fluid" *ngIf="(myAuthService.user | async) as user">
<div class="row">
<!-- navigation sidebar -->
<div class="col-2 pt-5" id="sideNav">
<app-navbar></app-navbar>
</div>
<!-- main content area -->
<main class="col-10 offset-2">
<router-outlet></router-outlet>
</main>
</div>
</div>
订阅您的authState
this.afAuth.authState.subscribe(user => {
// your code
});
您可以在那里设置用户。
你可以这样做 :-
在signin.component.ts中
onSignIn(form: NgForm){
const email = form.value.email;
const password = form.value.password;
this.authService.signInUser(email, password);
}
在AuthService.ts中
signInUser(email: string, password: string) {
firebase.auth().signInWithEmailAndPassword(email, password)
.then(
response => {
//check if response is correct here
this.router.navigate(['your_component_route']);
firebase.auth().currentUser.getIdToken()
.then(
(token: string) => this.token = token
)
}
).catch(
error => console.log(error)
)
}
因此,基本上,您必须使用router.navigate [(['Your_Route'])]将其重定向到要重定向的位置。
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