Before we can begin to access authentication state, the Corbado.load() call has to resolve. Find more here.

​
One-time access to Authentication State

If you want to access user state once, you can simply call Corbado.sessionToken, Corbado.user or Corbado.isAuthenticated to get the current user state.

app.component.ts
import {Component, OnInit} from '@angular/core';
import Corbado from '@corbado/web-js';
import {RouterOutlet} from "@angular/router";

@Component({
    selector: 'app-root',
    standalone: true,
    imports: [RouterOutlet],
    templateUrl: './app.component.html',
    styleUrl: './app.component.css'
})
export class AppComponent implements OnInit {
    constructor() {
    }

    async ngOnInit() {
        // Load and initialize Corbado SDK when the component mounts
        await Corbado.load({
            projectId: "pro-0552933888880246188",
            darkMode: 'off',
        });
    }

    async someApiCall() {
        if (Corbado.isAuthenticated) {
            const resp = await fetch('https://acme.com/api', {
                headers: {
                    // access the users session token once
                    Authorization: `Bearer ${Corbado.sessionToken}`
                }
            })
        }
    }
}

​
Subscribing to Authentication State

If you want to synchronize user state to your own state, you can subscribe to the authStateChanges and userChanges observables.

app.component.ts
import {Component, OnDestroy, OnInit} from '@angular/core';
import Corbado from '@corbado/web-js';
import {RouterOutlet} from "@angular/router";
import {Subscription} from "rxjs";

@Component({
    selector: 'app-root',
    standalone: true,
    imports: [RouterOutlet],
    templateUrl: './app.component.html',
    styleUrl: './app.component.css'
})
export class AppComponent implements OnInit, OnDestroy {
    userId: string | undefined = undefined
    private userSubscription: Subscription | undefined;

    constructor() {
    }

    async ngOnInit() {
        // Load and initialize Corbado SDK when the component mounts
        await Corbado.load({
            projectId: "pro-XXX",
            darkMode: 'off',
        });
        // Subscribe to Corbado user changes
        this.userSubscription = Corbado.userChanges.subscribe(next => {
            this.userId = next?.sub;
        });
    }

    ngOnDestroy() {
        // Clean up the subscription to avoid memory leaks
        if (this.userSubscription) {
            this.userSubscription.unsubscribe();
        }
    }
}

We can now render the userId in the template.

app.component.html
<h1>{{userId}}</h1>

​
Logout

You can log out the user by calling Corbado.logout.

app.component.ts
import {Component, OnInit} from '@angular/core';
import Corbado from '@corbado/web-js';
import {RouterOutlet} from "@angular/router";

@Component({
    selector: 'app-root',
    standalone: true,
    imports: [RouterOutlet],
    templateUrl: './app.component.html',
    styleUrl: './app.component.css'
})
export class AppComponent implements OnInit {
    constructor() {
    }

    async ngOnInit() {
        // Load and initialize Corbado SDK when the component mounts
        await Corbado.load({
            projectId: "pro-XXX",
            darkMode: 'off',
        });
    }

    logout() {
        void Corbado.logout();
    }
}

Now call the logout function in your template.

app.component.html
<button (click)="logout()">Logout</button>

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