TS2570 错误协助:“Promise<User>”类型上不存在属性“sendEmailVerification”。您是不是忘记使用“等待”?
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【中文标题】TS2570 错误协助:“Promise<User>”类型上不存在属性“sendEmailVerification”。您是不是忘记使用“等待”?【英文标题】:Assistance With TS2570 Error: Property 'sendEmailVerification' does not exist on type 'Promise<User>'. Did you forget to use 'await'?TS2570 错误协助:“Promise<User>”类型上不存在属性“sendEmailVerification”。您是否忘记使用“等待”? 【发布时间】:2020-07-27 14:18:56 【问题描述】:我正在尝试在我的 Ionic Angular 项目上设置 Firebase。我正在使用链接教程https://www.positronx.io/ionic-firebase-authentication-tutorial-with-examples/ 来执行此操作。
我不断收到 TS2570 错误:
“Promise”类型上不存在“sendEmailVerification”属性。您忘记使用“等待”了吗?
我已附上我的代码。我唯一改变的主要事情是 AngularFire 改变了 6.0.0 中使用身份验证的方式
import Injectable, NgZone from '@angular/core';
import auth from 'firebase/app';
import User from "./user";
import Router from "@angular/router";
import AngularFireAuth from "@angular/fire/auth";
import AngularFirestore, AngularFirestoreDocument from '@angular/fire/firestore';
@Injectable(
providedIn: 'root'
)
export class AuthenticationService
userData: any;
constructor(
public afStore: AngularFirestore,
public ngFireAuth: AngularFireAuth,
public router: Router,
public ngZone: NgZone
)
this.ngFireAuth.authState.subscribe(user =>
if (user)
this.userData = user;
localStorage.setItem('user', JSON.stringify(this.userData));
JSON.parse(localStorage.getItem('user'));
else
localStorage.setItem('user', null);
JSON.parse(localStorage.getItem('user'));
)
// Login in with email/password
SignIn(email, password)
return this.ngFireAuth.signInWithEmailAndPassword(email, password)
// Register user with email/password
RegisterUser(email, password)
return this.ngFireAuth.createUserWithEmailAndPassword(email, password)
// Email verification when new user register
SendVerificationMail()
return this.ngFireAuth.currentUser.sendEmailVerification()
.then(() =>
this.router.navigate(['verify-email']);
)
// Recover password
PasswordRecover(passwordResetEmail)
return this.ngFireAuth.sendPasswordResetEmail(passwordResetEmail)
.then(() =>
window.alert('Password reset email has been sent, please check your inbox.');
).catch((error) =>
window.alert(error)
)
// Returns true when user is looged in
get isLoggedIn(): boolean
const user = JSON.parse(localStorage.getItem('user'));
return (user !== null && user.emailVerified !== false) ? true : false;
// Returns true when user's email is verified
get isEmailVerified(): boolean
const user = JSON.parse(localStorage.getItem('user'));
return (user.emailVerified !== false) ? true : false;
// Sign in with Gmail
GoogleAuth()
return this.AuthLogin(new auth.GoogleAuthProvider());
// Auth providers
AuthLogin(provider)
return this.ngFireAuth.signInWithPopup(provider)
.then((result) =>
this.ngZone.run(() =>
this.router.navigate(['dashboard']);
)
this.SetUserData(result.user);
).catch((error) =>
window.alert(error)
)
// Store user in localStorage
SetUserData(user)
const userRef: AngularFirestoreDocument<any> = this.afStore.doc(`users/$user.uid`);
const userData: User =
uid: user.uid,
email: user.email,
displayName: user.displayName,
photoURL: user.photoURL,
emailVerified: user.emailVerified
return userRef.set(userData,
merge: true
)
// Sign-out
SignOut()
return this.ngFireAuth.signOut().then(() =>
localStorage.removeItem('user');
this.router.navigate(['login']);
)
唯一一次调用是在此处的注册页面中
signUp(email, password)
this.authService.RegisterUser(email.value, password.value)
.then((res) =>
// Do something here
this.authService.SendVerificationMail()
this.router.navigate(['verify-email']);
).catch((error) =>
window.alert(error.message)
)
这些是项目中使用的依赖项:
"@angular/common": "~8.2.14",
"@angular/core": "~8.2.14",
"@angular/fire": "^6.0.0",
"@angular/forms": "~8.2.14",
"@angular/platform-browser": "~8.2.14",
"@angular/platform-browser-dynamic": "~8.2.14",
"@angular/router": "~8.2.14",
"@capacitor/cli": "^2.0.1",
"@capacitor/core": "^2.0.1",
"@capacitor/ios": "^2.0.1",
"@ionic-native/core": "^5.0.7",
"@ionic-native/splash-screen": "^5.0.0",
"@ionic-native/status-bar": "^5.0.0",
"@ionic/angular": "^5.0.0",
"core-js": "^2.5.4",
"firebase": "^7.14.0",
"rxjs": "~6.5.1",
"tslib": "^1.9.0",
"zone.js": "~0.9.1"
如果有人可以就如何解决此问题给我任何提示?我不是 100% 确定如何在不显示更多错误的情况下实现 async 和 await 函数。
【问题讨论】:
【参考方案1】:我认为您应该将.then
回调函数移动到组件中,因为在服务中,您将返回promise
在服务中
// Email verification when new user register
SendVerificationMail()
return this.ngFireAuth.currentUser.sendEmailVerification()
在组件中
signUp(email, password)
this.authService.RegisterUser(email.value, password.value)
.then((res) =>
// Do something here
this.authService.SendVerificationMail()
.then(() =>
this.router.navigate(['verify-email']);
)
).catch((error) =>
window.alert(error.message)
)
更新
您可以保持一切原样,并将 async / await 添加到不在服务中的组件中的调用方函数
组件
async signUp(email, password)
this.authService.RegisterUser(email.value, password.value)
.then((res) =>
// Do something here
await this.authService.SendVerificationMail()
this.router.navigate(['verify-email']);
).catch((error) =>
window.alert(error.message)
)
服务
// Email verification when new user register
SendVerificationMail()
return this.ngFireAuth.currentUser.sendEmailVerification()
.then(() =>
this.router.navigate(['verify-email']);
)
【讨论】:
感谢您的回复。酷我已经改变了代码,但它似乎仍然指向SendVerificationMail() return this.ngFireAuth.currentUser.sendEmailVerification()
我还添加了:aync SendVerificationMail() await this.ngFireAuth.currentUser.sendEmailVerification()
但仍然显示相同的错误
我已经更新了我的答案,您可以将 async/await 添加到组件中的调用者函数中,并保持服务原样
很奇怪,还是不行。因为 .then 在单独的函数中,所以它不会让 await 工作继续显示之前的错误加上 await 错误,因为它是单独的。 error TS1308: 'await' expression is only allowed within an async function. [ng] 23 await this.authService.SendVerificationMail() [ng] ~~~~~ [ng] src/app/shared/authentication-service.ts:45:40 - error TS2570: Property 'sendEmailVerification' does not exist on type 'Promise<User>'. Did you forget to use 'await'? [ng] 45 return this.ngFireAuth.currentUser.sendEmailVerification()
你在组件中的注册方法中添加了async
吗?你必须在封闭函数中添加async
关键字才能使用await
我做到了,这很奇怪,我使用了您在上面发布的内容,但仍然显示错误。我有两种类型的注册页面。现在使用相同的 signUp() 但它很快就会改变。但我不明白为什么会引起冲突?编辑:谢谢你帮我解决这个问题!【参考方案2】:
新版本 AngularFire 6.0.0 发布以支持 Angular 9。它不向后兼容与旧版本。它不再支持旧版本的 Angular (
AngularFireAuth 的'auth' 属性已被弃用,因此'currentUser' 的用法也已更改。
'currentUser' 是一个解决当前用户的承诺。 属性“sendEmailVerification”不存在,但可以通过已解析的用户轻松访问。
// Email verification when new user register
SendVerificationMail()
return this.ngFireAuth.currentUser.then(u => u.sendEmailVerification())
.then(() =>
this.router.navigate(['verify-email']);
)
【讨论】:
【参考方案3】:我有这个问题。
import auth from 'firebase/app';
因为 firebase/app 正在被移除。这取代了什么?我遇到了 googleAuth() 的问题。以前我也有一个问题,能够在 localhost 上使用弹出窗口登录,但在部署到 android 手机时出现错误。
// Sign in with Gmail
GoogleAuth()
return this.AuthLogin(new auth.GoogleAuthProvider());
// Auth providers
AuthLogin(provider)
return this.ngFireAuth.signInWithPopup(provider)
.then((result) =>
this.ngZone.run(() =>
this.router.navigate(['tabs']);
)
this.SetUserData(result.user);
).catch((error) =>
window.alert(error)
)
【讨论】:
这看起来不像答案。如果是解决方案,请描述它如何解决 OP 的问题【参考方案4】:试试这个
// Send email verfificaiton when new user sign up
async SendVerificationMail()
(await this.afAuth.currentUser).sendEmailVerification()
.then(() =>
this.router.navigate(['verify-email']);
)
查看此注释https://github.com/angular/angularfire/issues/2409
【讨论】:
您好,请改进您的代码,如果您编写异步函数,请不要使用 .then 子句以上是关于TS2570 错误协助:“Promise<User>”类型上不存在属性“sendEmailVerification”。您是不是忘记使用“等待”?的主要内容,如果未能解决你的问题,请参考以下文章
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