Angular, User authenticates on Login but does not route to dashboard. Removing AuthGuard works

Question

I am new to angular and spend around 2 to 3 hours online trying to navigate from login to dashboard if user authenticates. I am able to route to dashboard if I don't user canActivate: [AuthGuard]. However as soon as I add canActivate: [AuthGuard] I am stuck on the login page(though I see the user SignIn on firebase console). Its just not navigating me to dashboard page

My code..

app-routing.module.ts

import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';
import { DashboardComponent } from './components/dashboard/dashboard.component';
import { AuthGuard } from './shared/guard/auth.guard';
//import { SecureInnerPagesGuard } from "./shared/guard/secure-inner-pages.guard.ts.guard";
//import { HomeComponent } from './components/home/home.component';
import { SignInComponent } from './components/sign-in/sign-in.component';
import { from } from 'rxjs';

const routes: Routes = [
  { path: '', redirectTo: '/sign-in', pathMatch: 'full'},
  { path:  'sign-in',component:  SignInComponent},
  { path:  'dashboard', component:  DashboardComponent, canActivate: [AuthGuard] },
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
export class AppRoutingModule { }

auth.guard.ts

import { Injectable } from '@angular/core';
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, UrlTree } from '@angular/router';
import { Observable } from 'rxjs';
import { AuthService } from  '../../auth/auth.service';
import { Router } from '@angular/router';

@Injectable({
  providedIn: 'root'
})
export class AuthGuard implements CanActivate {

  constructor(
    public authService: AuthService,
    public router: Router
  ){ }
  canActivate(
    next: ActivatedRouteSnapshot,
    state: RouterStateSnapshot): Observable<boolean | UrlTree> | Promise<boolean | UrlTree> | boolean | UrlTree {
      if(this.authService.isLoggedIn !== true) {
        this.router.navigate(['sign-in']);
      }
      return true;
  }

}

I've also added [AuthGuard] in Providers of app.module.ts Any help would be appreciated

Answer 1

looks like your if(this.authService.isLoggedIn !== true) condition returns true and your app navigate to the route sign-in. check if the this.authService.isLoggedIn becomes true when your login success.

Also you don't need if(this.authService.isLoggedIn !== true) you can just use if(!this.authService.isLoggedIn).