Guide to utilizing the sendEmailVerification() functionality in Angular

I'm currently working on setting up an email verification system using Angular and the Google Firebase API. I came across the sendEmailVerification() function through this reference, but I'm a bit unsure about how to correctly implement it. To address this, I decided to create a new function within my service.ts file, but I'm not entirely confident in its accuracy. Could someone offer some guidance on this matter?

//auth.service.ts
private authState: any = null;

get currentUserId(): string {
  return (this.authState !== null) ? this.authState.uid : ''
}

signUpWithEmail(email: string, password: string) {
  return this.afAuth.auth.createUserWithEmailAndPassword(email, password)
    .then((user) => {
      this.authState;
    })
    .catch(error => {
      console.log(error)
      throw error
    });
}

emailVerfication() {
  this.authState.auth.getAuth().auth.sendEmailVerification();
}

//app.component.ts
onSignUp(): void {
  //this.clearErrorMessage()
  if (this.validateForm(this.email, this.password)) {
    this.AuthService.signUpWithEmail(this.email, this.password).catch(error => {
      this.error = error
    });
   //this.AuthService.emailVerfication();
  } else {
    this.AuthService.emailVerfication();
  }
}
<form (ngSubmit)="onSignUp()">
  <div class="form-group">
    <label for="email">Email</label>
    <input type="email" class="form-control" id="email" name="email" required [(ngModel)]="email">
  </div>

  <div class="form-group">
    <label for="password">Password</label>
    <input type="password" class="form-control" id="password" name="password" required [(ngModel)]="password">
  </div>

  <button type="submit" class="btn btn-success">Register</button>
</form>

Although no errors were displayed, it seems that the verification email was not successfully sent to my email account. If additional code snippets or information are required to assist with troubleshooting, please let me know.

Answer №1

Although this question may be old, I wanted to share my solution in case someone else encounters the same issue. I've been tackling this problem myself recently, and while I'm not an expert in Angular and Typescript, here is how I managed to solve it.

Firstly, in my AuthService, I have a signup function that utilizes the Firebase function 'createUserWithEmailAndPassword'. After creating the user, I then call the 'sendEmailVerification' function on the current user as shown below:

signup(email: string, password: string) {
    return this.afAuth.auth.createUserWithEmailAndPassword(email, password)
        .then(() => this.afAuth.auth.currentUser.sendEmailVerification()
            .then(() => {
                console.log('Please verify your email');
                alert('Please verify your email');
            }).catch((error) => {
                console.log('Error: ' + error);
            }));
}

While this successfully sends a verification email, users were still able to access the application without verifying their email address. To address this, I implemented a route guard using CanActivate:

@Injectable()
export class RouteGuard implements CanActivate {

    constructor(private authService: AuthService, private router: Router) {
    }

    canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot) {
        if (!this.authService.authenticated) {
            this.router.navigate(['/']);
        }
        return this.authService.authenticated;
    }
}

Don't forget to add the route guard to the providers:[] array in your app-module file:

providers: [
    RouteGuard,
    ...
]

Next, in app-routing.module.ts, include the route guard for the paths you want to secure:

const appRoutes: Routes = [
    {path: 'welcome', component: WelcomeComponent},
    {path: 'login', component: LoginComponent},
    {path: 'signup', component: SignUpComponent},
    {path: 'home', component: HomeComponent},
    {path: 'messages', component: MessagesComponent, canActivate: [RouteGuard]},
    {path: 'private', component: PrivateComponent, canActivate: [RouteGuard]},
    {path: '**', redirectTo: 'welcome', pathMatch: 'full'}
];

I hope this explanation proves helpful for anyone facing similar challenges.

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