zitadel/site/docs/quickstarts/01-singlepageapp.md

title	description
Single Page Application	...

SPA Protocol and Flow recommendation

If your client is a single page application (SPA) we recommend that you use Authorization Code in combination with Proof Key for Code Exchange.

This flow has great support with most modern languages and frameworks and is the recommended default.

In the OIDC and OAuth world this client profile is called "user-agent-based application"

Typescript Example

Typescript Authentication Example

If you use a framework like Angular, Vue, React, ... you can use this code snippet here to integrate ZITADEL into you application

Library used for this example https://github.com/IdentityModel/oidc-client-js

import { UserManager, WebStorageStateStore, User } from 'oidc-client';

export default class AuthService {
    private userManager: UserManager;

    constructor() {
        const ZITADEL_ISSUER_DOMAIN: string = "https://issuer.zitadel.ch";

        const settings: any = {
            userStore: new WebStorageStateStore({ store: window.localStorage }),
            authority: ZITADEL_ISSUER_DOMAIN,
            client_id: 'YOUR_ZITADEL_CLIENT_ID',
            redirect_uri: 'http://localhost:44444/callback.html',
            response_type: 'code',
            scope: 'openid profile',
            post_logout_redirect_uri: 'http://localhost:44444/',
        };

        this.userManager = new UserManager(settings);
    }

    public getUser(): Promise<User | null> {
        return this.userManager.getUser();
    }

    public login(): Promise<void> {
        return this.userManager.signinRedirect();
    }

    public logout(): Promise<void> {
        return this.userManager.signoutRedirect();
    }

    public getAccessToken(): Promise<string> {
        return this.userManager.getUser().then((data: any) => {
            return data.access_token;
        });
    }
}